Others lose heart at the first sight of unusual difficulties.

另有些人乍一见到非同寻常的困难便丧失信心.

Many parents worry if they aren't overwhelmed by adoration at the first sight of their newborn baby.

很多为人父母者担心他们不会一开始就对宝宝有深深的孺爱之情。

A vast herd of horses appeared below them. There were riders too, a score or more, but they turned and fled at the first sight of the dragon.

一个庞大的马群出现在他们下面，有着二十多个骑手，但是他们一看到龙，就转身开始逃跑。