1.努力   v.

Let's try our best to improve the teaching methods.

讓我們設法努力改進教學方法。

2.試驗 v.

The computer software seems good but it needs to be tried out.

這個電腦軟體似乎不錯,但需要試驗一下。

3.嘗試n.

Class, who'd like to have a try at this math question

同學們，誰想試試這題數學