day1要大写吗

可要可不要，Day1的意思是第一天。

例：

Day1 But you should know up front this is not a love story.

这不是一个爱情剧故事，是一部个关于爱情的故事。

扩展资料

Parallel interpretation provided for day1 morning and day2 afternoon.

第一天上午和第二天下午有同声翻译。

Day1: They watch their first movie and they both got touched by the romantic film.

第1天：他们看了第一部电影，两个人都被那部浪漫的电影感动了。

But Day1 of his new career was spent responding to questions about character.

新人把职业生涯的第一天几乎都用在回答有关自己性格的问题上了。

An additional efficacy endpoint was the number of patients who were pain free on day1 after cataract surgery.

额外的疗效终点是病人谁是白内障手术后的疼痛，第1天的免费电话。