Definition: to be worried or frightened that something bad might happen or might have happened Level: B2
警方担心那对夫妇可能已经溺水身亡。
Police ___fear that the couple may have drowned.
据信有多达两百名乘客在坠机事故中丧生。
It is ___feared that as many as two hundred passengers died in the crash.
我们担心子孙后代将面临严峻的环境挑战。
We ___fear that future generations will face serious environmental challenges.
