四对的

I am on my 4th day of ownership.

我对我在第四天的所有权。

These achievements were all originated from my interest and acuteness in mathematics, and it had been the reason that I chose mathematics as a major to study for 4 years in the Mathematics Department of Beijing Normal University.

这些成绩得益于我对数学慢慢培养起来的兴趣和对数学的敏锐，也正是因为如此，我才选择了北京师范大学数学系作为我大学四年的专业。

Air-breathing arthropods characterized by simple eyes and four pairs of legs.

呼吸空气的节肢动物，特征是单眼并有四对腿。

the chinesesword, first known as weapon used on the battlefield, has been available for other uses other than military use alonesince the cavalryman didn't need to cut andstrike in wars as times went by.it functions as the limited transferring from the reward and power in emperors' hand, converts to enthusiasm of decoration representing the class, age and reflecting thesocialstatus in the ornamental band worn by nobles, deepens to the concepts of "three cutting-edges and four blades" in the hands of martial artists in terms of developing technologicalsystems of various ways and forming the performingstyle of"gong xing zui mian "aspecial way of performingsword posing as the regular , running, andsoft-typescript in chinese calligraphy, or as a drunk man trying to demonstrate the proficiency instriving for the balance in performance.

剑，首先从战场格杀进入人们视野，后来随着骑兵作战对砍劈的需要逐渐从军事前台退出，被人们移作他用。第一，进入社会生活的剑，在王者对剑"天下"和"军权"的新解读中，作为权力的象征和控制的对象，剑成为王者的赏赐之物和权力的有限让渡。第二，进入社会生活的剑，原先兵剑制作对硬度和韧性的考究，在达观贵族的佩带中转化装点的热情、形成"带剑"阶层和年龄的界定，并从不同装点和规定中折射社会地位。第三，进入社会生活的剑，兵剑实践形成的锋之刺、刃之斩技术，在武术人手中深化为"三锋四刃"的认识，建构了不同方法的技术系统，形成了"工行醉棉"演练体式；在大众手中成为砍病魔、挥心理阴影的健康道具。

At this stage, the fourth generation of human resource management information system set higher requirements.

在这一阶段中，对第四代的人力资源管理信息化系统提出了更高了要求。

In this paper, the research of discrimination of the excitation inrush current is ana...

论文对变压器励磁涌流的鉴别方案进行了分析，通过对互感器饱和状态的仿真，详细研究了四折线的比率制动的变压器保护方案。

Sen. Obama told reporters this week that while he couldn't duplicate the speech he delivered four years ago, he promised a 'workmanlike' speech that would answer voters' lingering doubts about 'what I am going to do to help them in their lives.

奥巴马本周对记者表示，尽管他无法复制自己四年前的演说，但他承诺会发表一篇精彩的演说，回答选民一直以来对他"会采取什么措施改善民众生活"的疑问。

The cutoff points for age from 0~7 year-old would be 21, 20,19, 18, 17, 16, 15, 14 mm accordingly to minimize the effect of BCG on TST during this age period and 12 mm for 8 to 14 year-old.

对於零到七岁的儿童，21， 20， 19， 18， 17， 16， 15， 14公厘与标准曲线推算出的年感染率差异最小，而对於八到十四岁的儿童12公厘则是最佳临界值。

Good!""Jingle bell" ringing after listening to four years, but today they appear to be so exciting exceptions, the teachers actually went into the room smiling, and she went to the podium before the students smiled and said:"The students, teachers satisfied with your performance today, please continue to work.

好的！&&叮铃铃&听了四年的铃声，但今天却显得那么异常让人兴奋，老师竟笑容满面地走进教室，她走到讲台前，笑着对同学们说：&同学们，老师今天对你们的表现十分满意，请继续努力。

Juveniles are light brown and striped, and initially have three or four pairs of legs. Body segments and legs are added with successive moults as they grow, until they reach adult size.

千足虫的幼虫为浅棕色，带有条纹，起初只有三对或四对腿，随着在发育过程中不断地蜕皮，体节和腿的数量在增长，一直长到成年大小，体节和腿的数量才能固定。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。