Belongs to the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help its passage evenwhen the wind is adverse.

這時雖有空氣和水與運(yùn)動著的鳥和船這樣的物體之間的面接觸，但與slide運(yùn)動相比黄A及黄色视频，可把這種面接觸的摩擦力視為極小的數(shù)值欧美、日韩、亚洲、中文视频，好象沒有摩擦力一樣黄片视频免费在线手机观看。

It tires not nor does it boast of its power; but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help itspassage even when the wind is adverse.

它不知疲勞日韩欧美国产三区，也不夸耀自己的飛翔能力，然而它在空中十分自如a片黄色视频a片，可以一直飛行6黄色网页视频在线观看，000英里国产婷婷网站导航。飛向北方的筑有鳥巢的家鄉(xiāng)以及從那里飛走黄色网站av在线免费观看，在飛行的過程中還要喂養(yǎng)已出窠的雛燕，甚至在頂風(fēng)的時候也能夠不費(fèi)勁地穿過那似乎有助它遷棲的氣流国产福利在线99。

It tires not nor does it boast of its power; but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help its passage even when the wind is adverse.

燕子充分兼有這兩類鳥的長處色综合综合热视频，它既不疲勞，也不炫耀自己的飛翔力一级毛片A片免费播放；在空中十分自如国外呦女网站，可以飛行6，000英里特级大黄A片免费线观看网站，可以飛往北方做窩的老家，再從老家飛回久久久精品久久久久；一邊飛一邊喂養(yǎng)會飛的雛燕久久无码A片，甚至在頂風(fēng)時也能在氣流中滑翔，似乎氣流在幫它前進(jìn)九九性爱。

It tires not, nor does it boast of its power; but belongs to the air, traveling it may be six thousand miles to and from it northern nesting home; feeding its flown young as it flies; and slipping through a medium that seems to help its passage even when the wind is adverse.

它既不疲勞在线不卡高清AV户外，也不炫耀自己的飛翔力；在空中十分自如欧美日韩区国产区，可以飛行6000英里大黄色视频，可以飛往北方做窩的老家，再從老家飛回人人干人人操人人舔人人摸；一邊飛一邊喂養(yǎng)會飛的雛燕玖玖色热在线，甚至在頂風(fēng)時也能在氣流中滑翔，似乎氣流在幫它前進(jìn)国内美女精品人AV在线播放。

The swallow shares the virtues of both schools in highest measure. It tires not, nor does it boast of its power; but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home, feeding its flown young as it flies, and slipping through a medium that seems to help its passage even when the wind is adverse.

燕子充分兼有這兩類鳥的長處欧州免费AV午夜福利，它既不疲勞，也不炫耀自己的飛翔力99精品视频在线看；在空中十分自如日韩国产欧美精品，可以飛行6，000英里黑人欧美视频，可以飛往北方做窩的老家欧美自拍日韩极速影院，再從老家飛回；一邊飛一邊喂養(yǎng)會飛的雛燕韩国Ⅴ欧洲V日本VA片在线观看，甚至在頂風(fēng)時也能在氣流中滑翔黄色网站国产网址，似乎氣流在幫它前進(jìn)。

It tires not nor does it boast of its power; but belongs the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help its passage even when the wind is adverse.

它即不疲倦也不炫耀它的力量欧美久久精品影院一本到综合，而是隨著風(fēng)飄国产av黄色片，喂養(yǎng)飛行的幼鳥，檐子可能會離北方的巢穴六千英里遠(yuǎn)国产免费污网站在线观看，而當(dāng)風(fēng)反向時最新欧美狂野日韩精品国产，會滑行以幫助它自己通過天堂AV在线播放最新版。

"It tires not nor does it boast of its power; but belongs to the air, traveling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help its passage even when the wind is adverse."

它既不易感到疲勞也不自夸其飛翔力，但在空中能大顯身手不卡av在线免费观看，往返于北方老窠飛行6000英里免费黄色在线啊～啊～，一路上喂養(yǎng)剛會飛的雛燕，輕捷穿行于空氣之中欧美激情偷乱人伦小说专区。即使遇上頂風(fēng)国产妇女AAAAAAAA手机看片，氣流似乎也能助上一臂之力，使之飛越而過又污又黄又爽的网站。

"It tires not nor does it boast of its power; but belongs to the air, traveling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slip ping through a medium that seems to help its passage even when the wind is adverse."

它既不易感到疲勞也不自夸其飛翔力se视频在线观看，但在空中能大顯身手，往返于北方老窠飛行6000英里人人妻人人干，一路上喂養(yǎng)剛會飛的雛燕亚洲综合久久综合激情久久，輕捷穿行于空氣之中。即使遇上頂風(fēng)人人插人人透人人射人人色人人干，氣流似乎也能助上一臂之力久久黄片不卡，使之飛越而過。

"It tires not nor does it boast of its power; but belongs to the air, traveling it may be six thousand mile s to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help its passage even when the wind is adverse."

它既不易感到疲勞也不自夸其飛翔力国产一在线精品自产拍，但在空中能大顯身手中国内地毛片免费高清，往返于北方老窠飛行6000英里，一路上喂養(yǎng)剛會飛的雛燕无码专区无码专区，輕捷穿行于空氣之中800凹凸视频在线观看网址。即使遇上頂風(fēng)，氣流似乎也能助上一臂之力精品无码三级在线视频网站，使之飛越而過亚洲成年不卡网址。

Medium 的含義是"介質(zhì)",沒有這種"介質(zhì)"便達(dá)不到一定的目的 It tires not nor does it boast of its power; but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home feeding its flown young as it flies and slipping through a medium that seems to help itspassage even when the wind is adverse.

它不知疲勞，也不夸耀自己的飛翔能力精品思思啪啪，然而它在空中十分自如jizz女，可以一直飛行6，000英里日本性爱网。飛向北方的筑有鳥巢的家鄉(xiāng)以及從那里飛走免费看污视频的网站，在飛行的過程中還要喂養(yǎng)已出窠的雛燕，甚至在頂風(fēng)的時候也能夠不費(fèi)勁地穿過那似乎有助它遷棲的氣流成熟丰满熟妇XXXXX图片。