尽快。

As soon as possible. 缩写是ASAP。

Should I mail this letter to you? (我可以把这封信寄给你吗?)

Yes. As soon as possible. (对，请尽快寄来。) 电话中的对话

随便吃。

All-you-can-eat.

buffet

smorgasbord

Eat as much as you like.

Eat as much as you wish. 作为句子应为“你想吃多少就吃多少”。

多项选择。

multiple-choice

multiple-choice questions (多项选择题)

各就各位，预备，跑!

Ready, get set, go!

On your mark, get set, go!

从头到尾。

from A to Z. 是开始字母A到最后一个字母Z，即“从开始到最后”、“完全”的意思。

I don't know anything about driving. (我一点也不懂驾驶。)

I'll teach you from A to Z. (我会从头到尾教你的。)

entirely (完全地)

completely (完全地)

始终/一直/一贯

all long 用于“从一开始我就说过吧”等句子中，表示“从开始就……”。

So, she is married. (所以，她结婚了。)

I've been telling you that all along. (我从一开始就告诉你了。)

from the very beginning

all this time

since the start