原标题：“Into”和“in to”傻傻分不清楚？看了你就理解了
into
prep. 到…里;深化…之中;成为…情况;进入到…之内
The word into is a preposition that expresses movement of something toward or into something else.into是一个介词，表明某物向另一物移动。
In toIn to, on the other hand, is the adverb in followed by the preposition to. They aren't really related and only happen to fall next to each other based on sentence construction. In to，另一方面，是副词in后边跟着一个介词to。它们之间其实没有任何联络，仅仅语句结构需要让他俩挨到一起了。
小窍门
“Into” usually answers the question “where?” while “in to” is generally short for “in order to.” So look at your sentence and replace “into” or “in to” with “where?” If the second half of your sentence answers it, use “into.” If it doesn’t, replace “where” with “in order to.” If that works, use “in to.”
“Into”一般答复问题“where?“，但是”in to“一般是”in order to“的缩写。所以，你能够看着你的语句，把“in to”或“in to”替换成“where”，假如语句的后半部分刚好能答复这个问题，请使用“into”。不然，请将“where”替换为“in order to”。假如语句意思通畅，便是用“in to”。
比方说：
The tooth fairy put my daughter’s tooth into her pocket.
牙仙把我女儿的牙齿收进了她的口袋。
The tooth fairy put my daughter’s tooth where? Ah—into her pocket.
牙仙把我女儿的牙放到哪-哦，放到口袋里
The tooth fairy came in to collect my daughter’s tooth.
牙仙进来把我女儿的牙收走了。
The tooth fairy came where? -collect my daughter’s tooth? Hmm … that doesn’t work.
The tooth fairy came in order to collect my daughter’s tooth.
牙仙进哪-收我女儿的牙?并不能说通。牙仙进来-为了收走我女儿的牙。
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