1 to exchange

2 exchange

3 communication

4 interaction

5 to have social contact (with sb)

1 or

2 possibly

3 maybe

4 perhaps

1 to flow

2 to disseminate

3 to circulate or spread

4 to move or drift

5 to degenerate

6 to banish or send into exile

7 stream of water or sth resembling one

8 class, rate or grade

1 to shed tears

1 (of a contagious disease etc) to spread

2 to propagate

3 (of a style of clothing, song etc) popular

4 fashionable

1 lit. 之[zhī], 乎[hū], 者[zhě] and 也[yě] (four grammatical particles of Classical Chinese) (idiom); fig. archaic expressions

1 man seeks his way up just as water seeks its way down (idiom)

2 one should constantly strive to make progress

1 The benevolent sees benevolence, the wise sees wisdom.

2 Different views are admissible. (idiom)

1 to commit to the waters (idiom); to lose sth irrevocably

1 He who comes is surely ill-intentioned, no-one well-meaning will come (idiom).

2 Be careful not to trust foreigners.

3 Beware of Greeks bearing gifts!