arch-up

基本解釋

When he awoke the next morning,he noticed that the bottom of his bedroom door was arched up in the center, leaving just enough space for a snake to slither through.
見嬸嬸像是睡著了，年輕人就小聲在叔叔耳邊說(shuō)：“我看見一條蛇?！钡藭r(shí)睡得迷迷糊糊的叔叔根本反應(yīng)不過(guò)來(lái)，開了門以后就回到床上鉆進(jìn)被子里去了。
How much do all these figures stack up to?
這些數(shù)字的總和是多少？
Swimming is the best way to tone up your body.
游泳是健體強(qiáng)身的最好方法。
I believe he has started reading up anthropology.
我相信他已開始攻讀人類學(xué)。
It is now our aim to set up a factory.
我們現(xiàn)在的目的是創(chuàng)辦一座工廠。