to let nature take its course：順其自然

雙喜臨門 to have two happy events in a family simultaneously | 順其自然 to let nature take its course | 水落石出 The water sinks low and the rocks at the bottom of the stream emerge.

to let nature take its course：順其自然 順其自然

雙喜臨門 雙喜臨門 to have two happy events in a family simultaneo... | 順其自然 順其自然 to let nature take its course | 水落石出 水落石出 The water sinks low and the rocks at the bottom of the stream ...

tremie concreting：[直升]導管澆筑混凝土法

水下澆筑混凝土法 under water concreting | [直升]導管澆筑混凝土法 tremie concreting | 混凝土封底 bottom sealing by concreting

bottoming tap：精絲錐

bottom view 底視圖 | bottoming tap 精絲錐 | bound water 結合水

and it lubricates where the ice meets the bedrock：在底部的冰和基巖之間起到潤滑作用

The water goes down to the bottom|水一直流到底部 | and it lubricates where the ice meets the bedrock.|在底部的冰和基巖之間起到潤滑作用 | See these people here for scale.|這里是一群人在勘測

Activities at the beach likes Kayaks：沙灘活動

Ocean snorkeling, bottom fishing, Banana Boat ride 暢玩香蕉船xx666.xxxx、浮潛、釣魚等 | Activities at the beach likes Kayaks, water tricycles, beach volleyball, etc...沙灘活動 | Lunch at the beach 於沙灘享用午餐

and when lakes form, they create what are called moulins：一旦形成了湖 就會產生冰川蝸穴

This shows what happens to the crevasses,|這里展示了裂隙造成的... | and when lakes form, they create what are called moulins.|一旦形成了湖 就會產生冰川蝸穴 | The water goes down to the bottom|水一直流到...

a pair of pyjama/tracksuit bottoms：一條睡褲/運動褲

a bikini bottom 比基尼泳裝的短褲 | a pair of pyjama/tracksuit bottoms 一條睡褲/運動褲 | the lower part of a ship that is below the surface of the water (吃水線以下的)船底,船身 countable