Question

翻译things may go wrong way and someone can let you down.

Answer 1

意译：事情的发展也许会不尽人意；有的人也会让你大失所望

go wrong way：走歧途；往错误的方向走

例如：

He who stands still will never go the wrong way.

有一种人永远不会走错路,那就是原地踏步的人.

let sth down：让某人失望

例如：

If you fail in the exam,you will let him down.

如果你考试不及格,你就会让他失望的.