放声大笑

For several years now, scientists have suspected that "mirthful" laughter, as distinguished from nervous or self-conscious chuckles, can help the immune system and even fight heart disease, but serious data have been lacking.

数年来，科学家一直怀疑欢快的放声大笑，有别于神经性的或者只有自己才能感知的暗自轻声笑，能帮助提高免疫系统技能，甚至还可以抵御心脏疾病，但至今还缺乏严谨的科研数据。

Now and again,he blew asmoke ring and laughed as Itried to target the hole with my finger.I,clad in acool summer nightie,and Grampy,his sleeveless T-shirt,sat watching the traffic.

他不时地喷出一串烟圈，在我试着将手指插入烟圈时他放声大笑。我穿着凉爽的小睡衣，祖父穿着他的无袖T恤，坐在那儿观看繁忙的交通。

When I first heard them, I laughed, I hear them now, and they make me shudder .

我第一次听到这种话时，我放声大笑。现在听到这种话时，我却毛骨悚然。

Have sea-ice ice fan amuse when laughing heartily , laugh that kind to shake the ear, very candid, easy to infect with people, really smiling to one's heart's content from the deep of the heart.

还有海冰被冰迷们逗得放声大笑时，那笑声好振耳，好爽朗，好感染人，真的是发自内心开怀的笑。

However, when it came to topics of the most unamusing nature, he would burst out laughing, roaring while rocking in his chair, almost tipping off and falling flat on his back, his Adam's apple dancing up and down in his throat and his whisker fluttering all over his face.

顶怪的是，他每每与中国学生聊天，聊到可笑之处时，他不笑，脸上也没表情，好象他不喜欢玩笑；可是有时毫不可笑的事，他会冷不防放声大笑，笑得翻江倒海，仰面朝天，几平连人带椅子要翻过去，喉结在脖子上乱跳，满脸胡子直抖。

The barge-woman was lean ing back and laughing unrestrainedly, till the tears ran down her cheeks.

那船娘正仰头放声大笑，笑得眼泪都从腮帮子上滚下来了。

When I stepped into her box, Marguerite was laughing uproariously.

当我走进包厢的时候，玛格丽特放声大笑。

There was none but as I headed down the stairs I heard a whoop of laughter and then, You've won!

什么也没有——但就在我下楼时，我听到他放声大笑起来，紧接着，他说道：你赢了！

It has been so obvious at times that it has caused the whole pitch to burst into laughter and yet the referee refuses to punish this.

它是如此的鲜明的时代，这引起了整个足球场的放声大笑，但裁判拒绝来惩罚。

He brayed with laughter.

他放声大笑。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。