我家的孩子不见了踪影。

I've got a boy that's turned up missing.

youdao

拿我来说，小时候，我家在夜半被盗，但直到我们醒来才发现窗户开了，钱包也不见了。

For example, when I was a kid, my house was robbed while we were sleeping, but we didn't notice the opened window and missing purses until we got up.

youdao

第二天，当您还在巴黎等着您父亲、可是总不见他回来的时候，一个男子来到我家里，交给我一封迪瓦尔先生的来信。

The next day, while you were in Paris waiting for your father who never came back, a man came to the house and handed me a letter from Monsieur Duval.

youdao