A large detachmentof police was used to segregate the two rival camps of protesters.
一大队分遣警察被派来隔离两群敌对的抗议者。
《柯林斯英汉双解大词典》
2
Some expected e-mailers to be the biggest liars, reasoning that because deception makes people uncomfortable, the detachmentof emailing would make it easier to lie.