1) Time is like the water sucked in sponge: if you squeeze, you can always get some--时间象水，只要去挤总是有的。

2) accumulate through long years--日积月累

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3) at the end of one’s rope--日暮途穷

4) day and night--日日夜夜

5) fast-changing--日新月异

6) night and day; day in and day out--日以继夜

7) Every minute counts--分秒必争

8) at a critical moment--千钧一发

9) throughout the ages--千秋万代

10) once in a blue moon--千载难逢

11) year after year; from year to year--穷年累月

12) like the sun setting beyond the western hills; on the wane--日落西山

13) leap year--闰年

14) in an instant; in a twinkle--霎时间

15) the first ten days of a month--上旬

16) late at night--深更半夜

17) Time has changed--时过境迁

18) change at every moment--瞬息万变

19) be cursed for ever by posterity; remain infamous in history--遗臭万年

20) be on the increase day by day--与日俱增