a quarter of a million crabs set off on a long journey to the shallows.二十五萬只蜘蛛蟹開始長途跋涉前往淺水區
a quarter of ... 的1/4
It's a quarter of two now.
現在是差一刻兩點。
A quarter of the area is covered with virgin forest.
四分之一的地區都是原始森林。
set off出發,動身
What time are you planning to set off tomorrow?
你打算明天幾點鐘啟程?
They've set off on a journey round the world.
他們已經開始環游世界。
It then flexes its body to force its shell to split along the back.....before gingerly backing itself out.然后收縮身體,迫使外殼沿著背部裂開,然后緩緩后退,從舊殼離開
force somebody to do something迫使某人去做某事
No power on earth could force me to do it .
世上沒人能強迫我做這事。
Circumstances force us to adopt this policy.
形勢迫使我們采取這項政策。
back out退出
He backed out of the deal when he saw the risks.
當他看到有風險的時候,立即退出交易。
It is too late to back out of the deal.
現在打退堂鼓為時已晚。