1 [C] something that you can fit on sth else to make it do a different job 附件；附着物: an electric drill with a range of attachments 备有一系列附件的电钻

2 [C,U] attachment (to/for sb/sth) the feeling of liking sb/sth very much 依恋；眷恋；深爱: emotional attachment 情感上的依恋

3 [C] (computing计算机技术) a document that you send to sb using EMAIL （随电子邮件发送的）附件