not easily damaged

Fruit and vegetables can be easily damaged, so they should be bought at the end, not the beginning, of a shopping trip.

因为水果和蔬菜很容易被压坏，所以应该最后买，而不是最先买。

Fixing damaged knees is tricky because the form of cartilage found in the joints does not easily regenerate and in some cases total joint replacement is the only option.

修复受损伤的膝盖是一件很复杂的事情，因为关节上的软骨是很难再生的，在一些情况下对关节进行整体更换是唯一可行的办法。

It is not advisable to touch the models as the details can be easily damaged.

由于模型的细节很容易被损坏，它们都不允许触摸。