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約束， やくそく

1. promise, agreement, arrangement, one's word, contract, pact 2. appointment, engagement, date 3. convention, rule 4. destiny, fate

协议，合同，约定；约会，订婚；惯例，规则；命运，宿命

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背く， 叛く， そむく

1. to run counter to, to go against, to disobey, to infringe

tbd

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彼， かれ

1. he, him 2. boyfriend

他

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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

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に

1. at (place, time), in, on, during 2. to (direction, state), toward, into 3. for (purpose) 4. because of (reason), for, with 5. by, from 6. as (i.e. in the role of) 7. per, in, for, a (e.g. "once a month") 8. and, in addition to 9. if, although

tbd

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