1 arm

2 classifier: 只 zhī

3 classifier: 条 tiáo

4 classifier: 双 shuāng

1 to bare one shoulder

2 (fig.) to side with

3 to discriminate in favor of

1 elbow

1 to shield (a miscreant) from punishment, criticism etc

2 to take sb's side

1 to expose

2 to bare

1 to remain neutral in a quarrel (idiom)

1 the elbow turns the wrong way

2 to favor an outsider instead of someone on one's own side (idiom)

1 lit. to go into battle bare-breasted (idiom)

2 fig. to go all out

3 to come out in the open