Use the top arm to press into the earth, bottom arm to press our bodies all the way back up.

上臂按压地面 下臂支撑我们的身体坐起来。

The master, throned on high in his great splint–bottom arm–chair, was dozing, lulled by the drowsy hum of study.

老师高高地坐在他那张巨大的夹板底扶手椅上，正在打瞌睡， 被困倦的学习嗡嗡声催眠了。