One April Fool's Day, a reporter in England announced that there would be no more spaghetti.

The most important one was principal's day.

最重要的一个是校长日。

One winter's day, when the flakes of snow were flying about, he spread the skirts of his blue coat, and caught the snow as it fell.

在一个冬天的日子里，当雪花正在飞舞的时候，他拿着一面放大镜走出来，提起他的蓝色上衣的下摆，让雪花落到它上面。

Here, it is fitting to quote an ancient Greek fable. One winter's day, a farmhand found a snake frozen by the cold.

这里用得着古代希腊的一段寓言：一个农夫在冬天看见一条蛇冻僵着。

In a field one summer's day a Grasshopper was hopping about, chirping and singing to its heart's content.

夏日的一天，一只蚱蜢正在一块庄稼地上蹦来跳去，无忧无虑地唱着歌。

Finding several thousand unread messages makes one's first day back at work peculiarly horrible.

在重返工作的第一天发现数千封未读邮件实在让人不寒而栗。

Jerry wrote this letter to Elaine on one Valentine's Day:

杰里在情人节给他的妻子写道：

For me there has been only one Valentine's Day worthy of the name.

对我来说，只有一个称得上是情人节的情人节。

One Father's Day buffet coupon to be given away to every family.

每个享用自助餐的家庭将获得父亲节自助餐优惠券一张；

One Valentine's Day, there was a huge snowstorm.

在情人节，来了一场暴风雪。

I know about the general sense of malaise that permeates one's day, everyday.

我知道，对于一般意义上的弊病贯穿其中的天，天天。

With the development of computer science, the security based on the public key is very dangerous.

特别是随着计算机技术的发展，建立在公钥密码基础上的保密通信岌岌可危。

But you must be careful. The traffic is very dangerous.

但是你得小心，交通太危险了。

A trade war would be very dangerous.

贸易战将是非常危险的。

Safety factors must also be taken into account, since construction can be very dangerous.

由于施工会很危险，所以安全因素必须考虑在内。

It is very dangerous for children to play in the street.

小孩在马路上玩耍是很危险的。

It's very dangerous for us to drive after drinking.

这是非常危险的，我们酒后驾驶。

We think it very dangerous to go out at night alone.

我们认为晚上独自一人外出很危险。

They are very dangerous, you could get hurt.

他们是危险人物，你会受到伤害的！

Its clinical process is very dangerous, the perioperative management is very important.

结论：急性脊髓损伤围手术期急性呼吸窘迫综合征的病因复杂，临床过程凶险，呼吸道的气管前瞻性切开及管理尤为重要。

I would say that corner is very dangerous, he said.

那个交叉路口是很危险的，他说。