大家在查：侧面身影 RobertBooker Manns reseaching 两千余糟含陶风复技术诀窍弗雷德马丁晴

背向后

背向后

背向后

背向后

1

Pregnant women should sit or lie down , after half a back by firm, or use side-lying position, make stomach muscles relax .

孕妇要坐下或半卧位，背向后靠稳，或采用侧卧位，让肚子的肌肉放松下来。

2

The dancers alternately arched and hunched their backs.

舞蹈者交替地将背向后弯和弓起

3

lean back in a chair

（坐在椅子上背向后倾），

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