Young jackdaws do not have to learn what certain sounds mean.

Jackdaws are incessantly circling round its golden crosses.

有些寒鸦绕着教堂上的金色十字架不停地盘旋.

This store doesn't charge for gift-wrapping.

这家店礼物包装不收费.

There are some gift-wrapping ideas too.

相当有趣而实用的教师资源用书.

My personal theory is that needs and desires create mental vacuums.

我个人的理论是,需求和欲望制造了思想真空.

Excessive energy is also required to achieve appropriate pressures and vacuums.

还需要额外的能量来造成所需的压力和真空.

Both vacuums and pure oxygen conditions are unfavorable for survival.

无论是真空还是纯氧环境,都不利于生存.

Our product range contains upright vacuums , dry tank vacuums, wet tank vacuums and special products.

我们的产品包含直立真空, 真空干燥罐,真空湿坦克和特殊产品.

Corporate interest in intranets has been catching on like wildfire.

各公司对内部网的兴趣犹如野火那样正在蔓延.

We are implementing tens of intranets, probably in the hundreds.

我们正在建立数以十计 、 也可能是数以百计的内部网.

Indeed, using intranets to replace much more costly groupware and E-mail packages may become a trend.

事实上, 利用内部网代替贵得多的群件和 电子邮件 软件包可能成为一种趋势.

Moreover, the networking complexity intranets is making he job of network administrators harder, users said.

而且用户们还说, 内部网带来的连网复杂性正在使网络管理员的工作更难巨.

This is an area where corporate Intranets really come into their own, easing the communications headache.

这就是公司内部网真正体现自身长处的地方, 因为内部网减轻了通信这个令人头痛的问题.

It makes it possible to interface remote data to business applications, Intranets, web sites etc.

它使连接远程数据变为可能,使其用于商业应用, 企业内网, 网站等.

Organization of all kinds now recognize the internet and intranets as effective means for global communication.

目前各种组织都承认internet和intranet是用于全球通讯的最有效方式.

Intranets can be scaled down to fit business needs and adapt to individual organizations.

内部网可以缩小,以适合业务的需要和适应各个机构.

But then, everything on intranets can be networked.

但内部网上的所有东西都是能被连网的.

Intranets are an ideal solution to the problematic issue of cost-effective remote access connectivity.

内部网是值得花费的远程访问连接这个疑难问题的理想解决方案.

The hydrogens no longer eclipse each other and are said to be staggered.

氢原子彼此之间不再是重叠的,而是交叉的了.

The other two activated hydrogens still can take place mannich reaction with amine and formaldehyde.

余下的两个活性氢位置仍然能与胺类、醛类发生曼尼期碱的缩合反应.

In there compounds, the cyclopentadiene ring has only four hydrogens.

在这些化合物里, 环戊二烯环只有4个氢.