1 tell-tale

2 informer (esp. to police)

3 whistleblower

4 grass

1 secret code

2 ciphertext

3 password

4 PIN

1 Guangzhou subprovincial city and capital of Guangdong

2 Canton

1 Dezhou prefecture-level city in Shandong

2 abbr. for 德克薩斯州|德克萨斯州, Texas

1 Hangzhou subprovincial city and capital of Zhejiang province in southeast China

1 harmonious combination of Chinese and Western elements (idiom)

1 to dig up roots and inquire at the base (idiom); to get to the bottom of sth

1 lit. cut grass and pull out roots (idiom); fig. to destroy root and branch

2 to eradicate

1 to go separate ways (idiom)

2 to part ways with sb

3 Taiwan pr. [gè bēn dōng xī]

1 lit. drink the northwest wind (idiom); cold and hungry