在或者靠近背部，或者朝向背部。

Here, rest your head against the back of the chair.

youdao

让肩胛骨沉向背部。

Bring your lower shoulder blades into your back.

youdao

然后他望向背后，却发现，没有一块可以看见的陆地。

Then he looked behind him and saw that no land was visible.

youdao

我要向背道者教导你的道路，而不敬者将回头复归于你。

I shall teach Thy ways to the lawless and the godless will return to Thee.

youdao

我要向背道者教导你的道路，而不敬者将回头复归于你。

I shall teach Thy ways to the lawless and the godless will return to Thee.

youdao