His intellect and mental agility have never been in doubt.他的才智和机敏从未受到怀疑。When in doubt, call the doctor.如有疑问,请联系医生。The outcome was still in doubt.结果仍不确定。...
You don't have to worry about me. I'm a good swimmer.你不用担心我。我水性很好。All kids her age do silly things; it's nothing to worry about.她这个年龄的孩子都会做傻事,根本不用担心。Don't you worry about them when they're out of...