engage in，be engaged in，engage to 有什么区别？怎么使用？

[解答]

engage in 意为“参知，从事干”、和 take part in意思相间、例如:

If you engage in local politics, you cannot expect to have much time for your family. 如果你投入本地的政治生活，你就不可能有更多的时间顾及家庭。

I have no time to engage in gossip, so please don't come to me with your rumours and complains. 我没时间参加你们的闲聊，请不要把我牵涉到你们的传闻和抱怨中去。

The prize-winning senator first engaged in politics at the age of twenty. 那位获奖的参议员在20岁就开始从事政治活动。

be engaged in 意为“忙着（做某事）”，“从事干”.例如:

Those men are behaving very suspiciously. They are engaged in some fishy business. I will be bound.

那些人的行为非常可疑，他们是从事一些渔业生意的，我敢肯定。

I have been engaging in teaching for more than three years.我从

事教育事业已有三年多了。

They are engaged in planning their summer trip.他们忙着计划夏

engage to意为“与……订婚”“约定“允诺”，例如：

I was engaged to Susan last month.我与苏珊上个月订了婚，

He engaged himself to pay back the money.他答应速钱。

I am engaged to the dinner. 我有约参加宴会。

The company had engaged to finish the project by June. 公司允诺在六月份之前完成那个项目。