all in a (或 the) day's work

(of something unusual or difficult) accepted as part of someone's normal routine or as a matter of course

（特別或困難的事）日常的，家常便飯的

dodging sharks is all in a day's work for some scientists.

對一些科學家來說躲避存心詐騙者是家常便飯。

any day

(informal)at any time

(非正式)任何時候，隨便哪一天

they could outfight the police any day.

他們隨時都可以打敗警方。

at the end of the day

they could outfight the police any day.

他們隨時都可以打敗警方。

by the day

gradually and steadily

逐漸平穩地

the campaign is growing by the day.

運動日益蓬勃。

call it a day

decide or agree to stop doing something

到此為止

day and night

all the time

日日夜夜，夜以繼日

the district is patrolled day and night.

該地區有人日夜巡邏。

day by day

on each successive day; gradually and steadily

一天天地

day by day I grew worse.

一天天地我的情況越來越糟。

day of reckoning

the time when past mistakes or misdeeds must be punished or paid for; a testing time when the degree of one's success or failure will be revealed

清算的日子，報應到來的時刻，最后審判日

don't give up the day job

(informal)used as a humorous way of recommending someone not to pursue something at which they are unlikely to be successful

(非正式，幽默)做好眼下的工作（讓某人不要追求不可能成功的事情）

from day one

from the very beginning

從一開始

children need a firm hand from day one.

孩子們從一開始就該嚴格管教。

have had one's (或 its) day

be no longer popular, successful, or influential

不再風光，不再流行

power dressing has had its day.

包裝成權勢人物已經過時了。

if he (或 she 等) is a day

at least (appended to a statement about a person's age)

至少（加在關于某人年齡的話語之后）

he must be seventy if he's a day.

他肯定至少有70歲了。

in this day and age

at the present time

現在

not someone's day

used to convey that someone has experienced a day of successive misfortunes

背運日