“at dark”可以造什么句，at dark造句

The hunters camped by the lake 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.

They turn the light on at dark.

Leave that dark water cellar.

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.