By the end of that first year, I knew how totally unsuited we were to each other.到了第一年年底, 我知道我们俩根本不般配。

He's totally unsuited to the job.他完全不适合做这份工作。

The snow cruiser proved unsuited to Antarctic conditions.事实证明雪地车不适合在南极那样的环境下使用。