Window screens are effective in keeping out mosquitoes. Efficacy observation of four kinds of DEET repellents on mosquitoes

Keeping on being a defier against time

倔强坚持对抗时间

a staunch defier of tradition.

坚定的反传统的人

I awoke to bright sun-light.

我醒来时只见阳光灿烂.

The sun light gets in through the window.

阳光从窗户射进来.

A strong sun light was burning skin of my neck and heating my body as well.

强烈的阳光灼烧着我的脖子,身体也开始发热.

A brilliant sun light up their rooms.

灿烂的阳光照亮了他们的房间.

The sun light glared on the ice.

阳光在冰上闪耀.

In the dawn, the air was fresh and cool, the sun light pleasant on the beach.

黎明的空气清新凉爽, 海滩上阳光宜人.

We put a tarpaulin across the window to block out the sun-light.

我们将油布横挂在窗子上遮住阳光.

Plant need water the way they need sun light.

植物需要水就像它们需要阳光一样.

And then I said farewell to sun light and set out to become what I became.

之后我向阳光道别,开始变成为我想要变成的东西.

Dr. William C. Dement, a WASM spokesperson, said World Sleep Day will "hopefully will be an event that is successful and will continue in the foreseeable future. Everyone needs to understand how important sleep is, and how sleep is so important for a healthy life."

世界睡眠医学协会发言人威廉·德门特博士称希望世界睡眠日能够取得成功，未来越办越好。我们每个人都需要了解睡眠，以及睡眠对健康的重要性。”

Both dement patients with jealousy delusion and 60% ones without jealousy delusion showed one or one and over other mental symptoms at last. There was significant difference in delusion of persecution and auditory hallucination in the group of jealousy delusion.

所有伴有嫉妒妄想的痴呆患者与60%无嫉妒妄想的痴呆患者均至少伴有一种或一种以上的其它精神症状，嫉妒妄想组在伴有被害妄想及幻听症状中有显著性差异。

"We wake up from dreams happy or depressed, andthose feelings canstay withus all day" says Stanford sleep researcher dr, William dement.

“无论我们从梦中醒来时是高兴还是沮丧，那些情感都可能整日伴随我们。”斯坦福睡眠专家威廉？戴蒙特博士说。

In l960 an American psychiatrist named William Dement published experiments dealing with the recording of eye-movements during sleep.

前些年，美国一位精神病学者发表了一篇报告，报告中记录了眼球在睡眠时的活动情况。

Metropolitan Region ( MR) is the region most valuable to research. It is no doubt the most important dement in both economic and spirit scopes.

大都市圈地域是各类经济地域中最值得人们去探讨研究的区域，无论在经济生活领域，还是精神生活领域，它无疑都是最重要的单元。

In this paper based on the theory of dynamics of construction, the some frames of the paper machines were analyzed for dynamic response with finite dement program.

根据结构动力学理论，应用有限元程序，对新、老纸机机架进行动态响应分析，以限定影响成品纸质量关键点的动态响应值为准则，提出高速纸机机架结构形式。

We are now introducing an dement of selectivity.

我们此时正导入一个选择性因素。

The European allies were reluctant to downgrade the nuclear dement in deterrence.

欧洲盟国不愿意降低部队的核威慑力量。

The stress singularity in the heel region of gravity dams is discussed in order to apply finite dement method directly to dam design.

探讨了有限单元法应用于重力坝设计及坝踵等应力奇异区域的应力控制标准问题。