坦克已在5点15分穿过边界，然后隆隆地向南开去。

Tanks had crossed the border at five fifteen and were grinding south.

《柯林斯英汉双解大词典》

能量可以穿过边界，但其他的不行。

Energy goes through the boundaries but nothing else.

youdao

那个人穿过边界逃回美国。

The man fled back across the border into the United States.

youdao

Energy goes through the boundaries but nothing else.

能量可以穿过边界,但其他的不行。

麻省理工公开课 - 热力学与动力学课程节选