be sick with worry 极度担心
He was sick with worry.
他担心得要命。
youdao
不要担心，老兄，她不会有事的。
A child with depression may pretend to be sick, refuse to go to school, cling to a parent, or worry that a parent may die.
抑郁患儿可能装病、拒绝上学、粘着父母或担心父母一方可能会死。
They worry about close contact with others who may be sick.
VOA: special.2009.07.14
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