1 tell-tale

2 informer (esp. to police)

3 whistleblower

4 grass

1 queen

1 or

2 possibly

3 maybe

4 perhaps

1 surname Wang

1 prince

2 son of a king

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

1 The benevolent sees benevolence, the wise sees wisdom.

2 Different views are admissible. (idiom)

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!

1 to refuse nobody (idiom)

2 all comers welcome

1 lit. the gate of a noble house is like the sea

2 there is a wide gap between the nobility and the common people (idiom)