一题英文翻译题。。谢谢

not to swim
to + 动词原形（这里的to 不是介词，是不定式）
固定搭配：tell sb. (not) to do sth.
in that river
这里用that没有错，但看到句子有“这”“那”
的时候不一定要用this that那么死板，也可以用the
因为the 有这个，那个的意思，而且是特指

The teacher told us not to swim in that river.

The teacher tells(也可以用told) us not to swim in that river.

The teacher told us not to swim in that river.

对。tell sb (not)to do sth 告诉某人（不）要干某事（不定式）