我试过用一些指甲硬化剂，但是没用。

I've tried nail hardeners, but they don't seem to help.

youdao

迈克：我试过了，但是没用。

Mike: I've tried, but...... it didn't work.

youdao

迈克：我试过了，但是没用。

Mike: I've tried, but... it didn't work.

youdao

So it was a little risky but safe in the end because I didn't do anything else with it.

所以它有点冒险但是最终是安全的,因为我没用它做其它的操作。

哈佛公开课 - 计算机科学课程节选

That doesn't help me much.

但是这并没用。

麻省理工公开课 - 计算机科学及编程导论课程节选