最迟

• at the latest
• at latest
• at lastest

例句

1. 最迟九时到这来。
   Be here at9 at latest.
2. 我最迟星期五给你一个确切的答复。
   I'll give you a definite answer on Friday at the latest.
3. 数日之内我们将有三笔大额进款，所以我们最迟于下星期一以前定给贵方汇款。
   As we expect to receive three large sum within the next few day, we will send you some money by monday at the latest.