the part of用三单吗

用单三，例如：

1、There is still some reluctance on the part of employers to become involved in this project.雇主们仍然不太愿意参加这项工程。

2、There was a call for moderation on the part of the trade unions.有人呼吁工会保持克制。

3、She was ideally suited to the part of Eva Peron.她演爱娃∙庇隆这个角色再合适不过了。