This map is just useless.这张地图一点用处也没有。

Their money was useless in this country.他们的货币在这个国家一文不值。

Computers would be useless without software writers.没有编程员, 计算机就会毫无价值。

Trying to persuade him would be useless.想要说服他是不会有效的。

It is useless to complain.抱怨不会有效果。

You're useless!你真差劲！

He admits he's useless at football.他承认自己踢足球很差劲。

He is useless at choosing Christmas presents.他选不好圣诞礼物。

I'm absolutely useless at getting up in the morning.我是绝对不能早起的。