您要查找的是不是：
- His disappearance is unaccounted for. 他失踪原因不明。
- His disappearance is worrying. 他的失踪让人担心。
- His disappearance is being looked into by the police. 他失踪一事警方正在调查。
- His repeated absence is worrying. 他一再缺课令人担忧。
- He frowns. He is worrying about his boy. 他皱着眉头,因为他在为他的孩子担心。
- His disappearance is an enigma. 他的失踪是个谜。
- He frowns. He is worrying about his child. 他皱着眉,正在为他的孩子担心。
- His repeated absence (from school) is worrying. 他一再缺课使人担忧.
- There is a lot of suspicion about his disappearance. 人们对他的失踪有很多猜测。
- Bill is worried because he thinks his girlfriend is up the spout. 比尔很焦急，因为他以为他的女朋友怀孕了。
- Her disappearance is a complete riddle. 她的失踪完全是一个谜。
- Nobody knows the reason for his disappearance. 谁也不知道他为什么不见了。
- His disappearance overshadowed the family. 他的失踪给家庭蒙上了一层阴影。
- She is worrying the problem out. 她正在绞尽脑汁解决这个问题。
- No one noticed his disappearance. 没人注意到他失踪了。
- I had a bad tooth that is worrying me . 我有一颗蛀牙，使我感到不适。
- Nobody knows the reason for his disappearance . 谁也不知道他为什么不见了。
- I had a bad tooth that is worrying me. 我有一颗蛀牙,使我感到不适。
- We were perturbed to hear of his disappearance. 我们听说他失踪了;都很不安.
- The mother is worried about her son's safety. 这位母亲担心她儿子的安全。
