迷你对话：
A: I hear that Mary got mad.
我听说玛丽疯了。
B: So I heard.
我也听说了。
A: What’s wrong with her?
她怎么了?
B: She went over the edge after her son was killed in an accident.
自从他儿子在车祸中丧生后，她就疯了。
