在全时工作环境下，触摸屏键盘会成为严重的负担。
In a full-time work environment, touch screen keyboards become a serious burden.
在皮肤暴露在外的环境下都要涂抹全效防晒霜，即使是冬天也一样。
Wear a broad spectrum sunscreen, even in the winter, anywhere skin is open to the elements.
就想我们学习第一语言一样，如果我们被包围在一个全英语的环境下，我们就必须每天说英语。
Just as we learn our first language, if we are immersed in an English environment, we have to practice English each day.
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