用at dark造句子，“at dark”造句

They turn the light on at dark.

It opened recently and isn't yet running at full speed. When it does, many are holding out hope that dark matter will finally be pinned down.

So you could say that dark materials are better at absorbing light, which heats them up- and they're also better at sending the heat back out.

Leave that dark water cellar.

The hunters camped by the lake at dark.