lose sight of

忽略, 看不见 ... 了, 忘记

例句与用法：

In the heat of the argument we mustn't lose sight of our main purpose.

在辩论得激烈的时候，我们不应忘掉我们的主要目的。

I watched the plane go higher and higher until I lost sight of it.

我一直看着飞机飞得越来越高，一会儿就看不见了。

If we lose sight of the goal, we cease to be Communists.

如果忘记了这个目标，我们就不再是共产党员了。

The hunter lose sight of their quarry in the forest.

猎人失去了在林中追捕的鸟兽踪影。

详细释义：

不再看见

I've lost sight of that bird.

我看不到那只鸟了。