apprehensive
adj. 忧虑的，担心的；（与）领会（有关）的，（与）理解（有关）的
例句
You have no reason to be apprehensive of the future.
你没有理由忧虑未来。
《牛津词典》
People are still terribly apprehensive about the future.
人们对未来依旧极为担心。
《柯林斯英汉双解大词典》
She was deeply apprehensive that something might go wrong.
她很担心可能要出什么差错。
