Themonitorshould be roughly at eye level so you can lean back in a chair with back support.

显示器应该大概和眼睛处于同一水平线，这样你就能往后靠在椅背上。

youdao

Lean on the ball as shown, keep the back flat or maintain its natural curve, with the legs straight.

身体俯卧于球体之上，动作如图所示。背部保持正直或保持自然弯曲状态，腿部伸直。

youdao

The hot-spot adjustments: Either lean back, resting your hands on the bed behind you, or lean forward with your hands above his head.

热点调整：不管是向后靠，把双手放在身后的床上，或者是前倾把手放在他头上。

youdao

Steve Collins, an Australian broadcaster who runs the blog Grumpy's Getaway Guide, argues that he shouldn't have to put up with passengers who lean back and invade his personal space.

CNN: Air rage: Is reclining your seat a right?

With long candles, "you tend to lean back and you project your voice more, " he added.

WSJ: Pop-Ups Are Taking Over the Kitchen

Ali would lean back on the ring ropes, cover his face with his forearms and let his opponent wear himself out in a flurry of punches.

CNN: From Charles Bierbauer