The material for building the bridge must be very strong so that it may not break in use.

为使桥梁不致在使用中断裂，建造桥梁的材料强度必须非常高。

youdao

If the material were less rigid, it wou1d not break so easily.

如果那个材料不那么刚硬，它就不那么容易碎。

youdao

If the material were less rigid, it wou1d not break so easily.

如果那个材料不那么刚硬，它就不那么容易碎。

youdao