1.I worry that I won't get into college.
我担心自己进不了大学。
2.I'm worried about the safety of the treatment.
我担心这种疗法是否安全。
3.It's only human nature to be worried about change.
对变革有忧虑不过是人之常情。
4.You needn't worry about money ─ I'll see you right.
你不必担心钱的问题——我会给你的。