These two principles, especially when used together, can be powerful motivators.
这两个原则，特别是当用在一起的时候会成为十分有力的激励因素。
They used to get together with some friends once a week when they live here.
他们过去住这儿的时候，总是每星期都与朋友们聚会一次。
Here's an example when two word used together can sound very painful.
下面这个例子中的两个词在一起使用时，听起来很痛苦。
Used when a couple has decided to live together.
用于当一对恋人决定生活在一起时。
We used to do homework together on weekends when my mom wasn't at home.
以前周末我妈妈不在家，我们就经常一起写作业。
I wish that we could spend, the holidays together, I remember when you used to.
我希望我们能一起度过，整个假期，我记得你曾经。
I wish that we could spend, the holidays together, I remember when you used to.
我希望我们能一起度过，整个假期，我记得你曾经。
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