F-3：fall flat 落得无趣

A:Tom's leg is broken.

A:汤姆的腿断了。

B:So I hear, He fell flat on his leg as he walked downstairs.

B：我听说了，他下楼的时候摔了个结结实实。

A:I'm afraid he has to stay in bed for a long time.

A：恐怕他得在床上呆很长时间了。

B:Sure.

B：可不是。