这肉很难嚼。

This meat is difficult to ___chew.

你食物嚼得不够——这就是你消化不良的原因。

You don't ___chew your food enough - that's why you get indigestion.

接下来，当你吃东西时，请多嚼一会儿。

Next, when you eat something, please ___chew [it] for a long time.