by air mail：寄航空郵件

57)by and by 不久 | 58)by air mail 寄航空郵件 | 59)by ordinary mail 寄平信

by analogy：照此類(lèi)推

by all nerves => 高度不安,神經(jīng)緊張 | by analogy => 照此類(lèi)推 | by and by => 不久;以后;后來(lái)

by any kind of means by hook or crook play hard by fair means or foul：不擇手段

不約而同happen to coincide | 不擇手段by any kind of means by hook or crook play hard by fair means or foul | 不知所措be at a loss be all adrift lose one's head out of one's wits

by any kind of means by hook or crook play hard by fair means or foul：不擇手腕

不約而同happen to coincide | 不擇手腕by any kind of means by hook or crook play hard by fair means or foul | 不知所措be at a loss be all adrift lose one's head out of one's wits

by any kind of means by or crook play hard by fair means or foul：不擇手段

不約而同happen to coincide | 不擇手段by any kind of means by or crook play hard by fair means or foul | 不知所措be at a loss be all adrift lose one's head out of one's wits

by any kind of means by hook or crook play hard by fair means or foul www.51test.net：不擇手段

不約而同happen to coincide www.51t... | 不擇手段by any kind of means by hook or crook play hard by fair means or foul www.51test.net | 不知所措be at a loss be all adrift lose one's head out of one's wi...

S by W south by west：南偏西

S by E south by east 南偏東 | S by W south by west 南偏西 | Sc scandium 鈧

S by E south by east：南偏東

Sb antimony 銻 | S by E south by east 南偏東 | S by W south by west 南偏西

by-and-by：不久,遲早

by all means 盡一切辦法,務(wù)必 | by and by 不久,遲早 | by chance 偶然,碰巧

by-and-by：不久以后,將來(lái)

by all nerves 高度不安,神經(jīng)緊張 | by and by 不久以后,將來(lái) | by and large 總的來(lái)說(shuō),大體上