on cue的用法和樣例：
例句
- He said she will be back very soon and, right on cue, she walked in.
他說(shuō)她很快就回來(lái)，說(shuō)著(zhù)說(shuō)著(zhù)，她走進(jìn)來(lái)了。 - He said she would be back very soon and, right on cue, she walked in.
他說(shuō)她很快就回來(lái)，說(shuō)著(zhù)說(shuō)著(zhù)，她走進(jìn)來(lái)了。
