1 buttocks

2 bottom

3 butt

4 back part

1 to pair up

2 to match

3 to arrange in pairs

4 to add sth into a group

1 way

2 manner

3 style

4 mode

5 pattern

6 classifier: 个 gè

1 mode

2 method

3 pattern

1 formal

2 official

1 to cut flesh from one's thigh to nourish a sick parent (idiom)

2 filial thigh-cutting

1 to study assiduously and tirelessly (idiom)

2 頭懸梁，錐刺股|头悬梁，锥刺股[tóu xuán liáng

3 zhuī cì gǔ]

1 to show warm feelings but meet with cold rebuke (idiom)

2 to be snubbed despite showing good intentions

1 to shake like an aspen

2 to shiver with fear (idiom)

1 with shuddering thighs and skin like gooseflesh (idiom)