Correct

至迟

/ zhìchí /
Strokes

Definition

at the latest

Example

As an Adverb

at (the) latest

1
men
你们
必须
zhìchí
至迟
zài
xià
xīng
星期五
qián
jiāo
zuò
作业
  

You must hand in your homework by next Friday at the latest.