at one's convenience
1. 就某人方便
You can do it at your convenience.
你可以在方便的时候做。
at your earliest convenience
1. 在你方便时尽早(商业书信用语)
Please reply at your earliest convenience.
请尽早回信。
make a convenience of sb.
1. 利用某人
Do you really think I'm making a convenience of you?
你真的认为我在利用你吗?