第1个回答 2008-07-01
once: [ wʌns ]
ad. 一次,曾经
conj. 一旦
n. 一次
例句与用法:
1. He stopped playing the piano at once.
他立刻停止了弹钢琴。
2. Once you begin, you must continue.
一旦开始，就必须继续。
3. Once is enough, never again.
一次就够了，别再干了。
4. Once we lived in London.
我们曾经住在伦敦。
5. All at once she lost her temper.
她突然发起脾气来。
6. Amanda is home from college once again.
阿曼达又从学校回到家中。
7. The film is at once humorous and moving.
这部电影既幽默又动人。
8. Be pleasant to each other just this once.
彼此要和睦些－－就只为这一次吧。