1. 投入：在<少年犯罪原因探析>>(Cause of Delinquency)一书中,赫希声称,有四种纽带把人们同社会和守法行为联系起来:依附(Attachment)、责任(Commitment)、投入(Involvement)和信念(Belief).

1. 参与;介入;卷入
    Your involvement in something is the fact that you are taking part in it.

    e.g. You have no proof of my involvement in anything...
           你没有证据证明我参与了任何活动。
    e.g. She disliked his involvement with the group and disliked his friends.
           她不喜欢他与那帮人交往,也不喜欢他的朋友。

2. (投入的)感情;(倾注的)热情
    Involvement is the enthusiasm that you feel when you care deeply about something.

    e.g. Ben has always felt a deep involvement with animals.
           本对动物总是有着深厚的感情。

3. 暧昧关系;恋爱关系
    An involvement is a close relationship between two people, especially if they are not married to each other.

    e.g. They were very good friends but there was no romantic involvement...
           他们是非常要好的朋友，却没有任何暧昧关系。
    e.g. Mahler was also known for his passionate involvements outside marriage.
           马勒也因为其轰轰烈烈的婚外情而出名。

1. the act of sharing in the activities of a group

    e.g. the teacher tried to increase his students'' engagement in class activities

    Synonym: engagementparticipationinvolution

2. a sense of concern with and curiosity about someone or something

    e.g. an interest in music

    Synonym: interest

3. a connection of inclusion or containment

    e.g. he escaped involvement in the accident
           there was additional involvement of the liver and spleen

4. the condition of sharing in common with others (as fellows or partners etc.)

    Synonym: participation

5. a usually secretive or illicit sexual relationship

    Synonym: affairaffaireintimacyliaisonamour