I can't decide the date of the meeting.
我决定不了这次会议的日期。
Don't decide on important matters too quickly.
重要的事情，不要过于匆忙的做决定。
Have you decided where to go yet?
你们定下来，去哪儿了吗？
It is difficult to decide between the two.
两者难以抉择。
His decision to leave tomorrow surprised us.
他明天离开的决定，使我们为之一惊。
It is difficult for one to do good deed all one's life.
难的是一个人一辈子都做好事。
