1.kept up 保持 繼續 維持 跟上(時代)
例句: The house is becoming too expensive for them to keep up.
他們的房子維修費用貴得越來越修不起了。
2.pointed out 指出;指明,說明;使注意到
例句: He pointed out the interesting parts to us.
他把有趣的地方指給我們看。
3.had not an idea 一點不知道; 聽也沒有聽過;沒辦法
例句:I have no idea why he resigned his post.
我不知道他為何辭去他的職務。
4.leave it to 順其自然
例句: We mustn't leave it to take its own course.
我們不能聽其自然。