When an actor 当一名演员
When an explorer 当一名探险家
When an accounting work 进行会计工作时
When an emergency occurs 当紧急情况发生时
when an obligation is incurred 时产生的义务 ; 当招致的义务 ; 当某项义务是支出
When An Accident Occurs 时事故发生
When An Exception Occurs 当发生异常时
He was about to shut the door when an idea came to him.
他正准备关门时,突然想起了一个主意。
He was rescued only when an exhausted friend swam ashore.
当一个精疲力尽的朋友游上岸时,他才得救。
When an older person enters a room, everyone stands.
一位老人进入房间时,所有人都站着。
One belief is that it started when an English stableman committed suicide by hanging himself while standing on a pail,or bucket.
VOA: special.2011.06.05
It's called this just because it's an electron that results when an electron absorbs a photon's worth of energy, so thus it's a photoelectron.
之所以这样称呼是因为,当一个电子吸收,一个光子的能量的结果,因此它是一个光电子。
And then I want to work on an organic garden when I'm older though,
然后等我年纪大了,就去有机花园工作,
应用推荐