insurances造句

Trace element mixes serve as insurances.
微量元素只是作为一种保障措施.

First of all, some doctors don't participate in some insurances by definition.
首先, 一些医生 肯定 不会参加某些保险.

These five kinds of insurances all exist the certain problem.
这五种保险都存在一定的问题.

• #insurances