“试着做某事”，怎么说？比如试着调试下

try to do sth是“努力尝试做某事”
应该用try doing sth，例如“试着调试”就是try testing it 或者try commissioning it

try to do sth

try to debug sth

try to do sth.
try to debug

just have a try.

试着敲门： try knocking at the door
需要努力才能办到的事 try to do sth.