I work from front to back in the image, so whatever is in the foreground I have to do first.

我在图像中从前到后工作，所以无论前景是什么，我必须先做。

Slide the front part of the tongue back on the roof of the mouth.

将舌头的前部滑回上颚。

They have made a breach in the barriers, they rush in, they are thrust back! Front de Boeuf heads the defenders.

他们在栅栏那里打开了一个缺口，他们冲进来，可是又被赶了回去！指挥守兵的是弗朗·德·伯夫。

I caught myself whistling while I was pulling the front part of my hair back into a barrette, and later again as I skipped down the stairs.

当我用一个夹子把刘海往后别起来的时候，我发现自己在吹口哨，而稍后我跳着下楼时又吹了一声。