By day和By the day，你能說出哪個是白天嗎？關於day的實用口語，馬上來看吧~

1

By day

白天

The weather in the desert is hot by day,

cold at night

沙漠的天氣是白天很熱，晚上很冷。

2

By the day

按日；按日計算

We are paid by the day.

我們按日領薪。

3

Day by day

一天天逐日

I live for the moment day by day, not for the past.

我一天天的活在當下，而不是活在過去。

4

Call it a day

就到這裡，收工（工作結束）

Let"s call it a day and go shopping.

我們收工然後去購物吧！