us study necessary to hard it’s for 连词成句

问题描述:

us study necessary to hard it’s for 连词成句

It's necessary for us to study hard .

It's necessary for us to study hard .

lt's necessary for us to study hard.

It's necessary to study hard for us.

It's necessary to study hard for us.
翻译:对于我们来说努力学习是必须的