1 used to /ˈjuːstə/ adjective Learner's definition of USED TO
: familiar with something so that it seems normal or usual习惯于；适应 -
I'm not used to driving this car yet.我还开不惯这辆车。
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He is used to criticism. = He is used to being criticized.他对挨批评习以为常。
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The dog will need a few days to become used to its new home.这条狗需要几天时间来适应它的新家。
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I've been out of school for so long that I'm not used to studying anymore.我离开学校太久，已不再适应学习了。
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She quickly got used to the warm weather.她很快就适应了温暖的天气。
2 used to /ˈjuːstə/ verb
Learner's definition of USED TO
[modal verb]
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used to say that something existed or repeatedly happened in the past but does not exist or happen now曾经；过去（常常） -
We used to go out more often. [=in the past we went out more often]我们在过去外出得更加频繁。
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He never used to smoke. [=he never smoked in the past]他以前从不吸烟。
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My grandmother said winters used to be harder here.我祖母说以前这里的冬天更难熬。
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(Brit, old-fashioned) You used not to smoke, did you?你以前不吸烟，对吧？
Usage用法 Used to is usually used in the form use to when it occurs with did.与did连用时，used to通常写作use to。 -
Did you use to work there? [=did you work there in the past?]你以前在那儿工作吗？
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It didn't use to be like that.它过去不是那样的。
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He didn't use to smoke.他以前不吸烟。