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離す， はなす
1. to separate, to part, to divide, to keep apart
放开；分离；分开；隔开；分开存放
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おく， 置く
1. to put, to place
2. to leave (behind)
3. to establish (an organization, a facility, a position, etc.), to set up
4. to appoint (someone to a certain position), to hire, to employ
5. to place (one's trust, one's faith, etc.), to bear (in mind, etc....
放置；安置；留下(在后面)；建立(一个组织、一个设施、一个职位等)，设立；任命(某人担任某一职务)，雇用，聘用；给予(信任、信心等)，铭记(于心等)；放下工具(例如一支笔)，从而停止使用该工具进行的当前的操作；接待(寄宿者等)，在自家房屋中提供住宿服务；提前做某事；使某物呈现某种状态；使某物保持某种状态；在空间上或时间上分开
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
から
1. from (e.g. time, place, numerical quantity), since
2. from (originator), by
3. because, since
4. out of (constituent, part)
5. through (e.g. window, vestibule)
6. after, since
7. expresses sympathy or warning
从，自……；因为；被，用于……
