试试看

Try it over.

再。

Try the door.

开开门。

I am doubtful whether I could ever learn English, but I'm determined to have a bash at it.

不晓得我能不能学会英语, 但是我决心。

I don’t know if I’ll be any good at editing the newsletter, but I’ll give it a shot.

我不知道自己有没有能力编辑事通讯，不过我会。