Some students put stress on marks.

译文； 一些学生把压力放在标志。

Both of these things put stress on the heart.

这些都会增加心脏的压力。

The heavy tractors put stress on the stone bridge.

沉重的拖拉机给石桥以很大压力.

The vehicles passing over put stress on the material of the bridge.

过桥的车辆给桥梁的材料施加了重压.