What time do you usually wake up in the morning?

　　通常你早晨幾點(diǎn)鐘醒？

　　We don't usually give presents to people at work.

　　我們一般不給在職職工送禮。

　　The ulcer has perforated.

　　潰瘍已穿孔。

　　He has suffered from gastric ulcer for some years.

　　他胃潰瘍有些年了。

　　She undertook the arduous task of monitoring the elections.

　　她承擔(dān)了監(jiān)督選舉的艱巨任務(wù)。

　　In those days, the trip across country was a dangerous undertaking.

　　那個時期，越野旅行是一件危險(xiǎn)的事情。