查询词典 refresher course

While the course focuses primarily on humans, it explores the intersection of human ethology and animal behavior, because there are many similarities between the two disciplines.

虽然本课程主要聚焦于人类，但由于人类动物行为学和动物行为间有许多相似处，本课程也探索两学科间的交集。

After esterification, the ethyl-2-chloro-3-phenylpropionate reacts with diethyl malonate under the catalysis of sodium ethylate, and we obtain the corresponding triethyl ester. The-benzylsuccinic acid is formed by the triethyl ester reacting with concentrate hydrochloric acid and taking place hydrolyzation and decarboxylation reaction at the same time. In order to avoid the formation of cinnamic acid, the sodium ethylate and diethyl malonate must be react sufficiently. The course has simple operation, inexpensive materials and better yield.

具体制备工艺为：首先以L-苯丙氨酸为原料采用重氮化方法得到-2-氯-3-苯基丙酸，再经酯化得到-2-氯-3-苯基丙酸乙酯后在乙醇钠催化作用下和丙二酸二乙酯缩合，发生SN2反应，得到相应的三乙酯，然后经水解和脱羧，得到-苄基丁二酸；在实验中乙醇钠要和丙二酸二乙酯充分反应，避免生成肉桂酸乙酯；该过程操作简单，原料便宜，产率较高，总收率可达到26.8%。

But also in the long course of historical development, the formation of a certain etiquette.

而且在长期的历史发展过程中，形成了一定的礼制。

This is "Etude", about bicycle rotary island's story, a section about life and youth course.

这就是《练习曲》，一个关于单车环岛的故事，一段关于生命和青春的历程。

The main contents of this course include linear space, linear transformation , quadratic form and Euclid space.

本课程内容有：线性空间、线性变换、二次型、欧氏空间等。

You know of course that the volume of a sphere goes up as the cube of its radius-according to normal Euclidean geometry ?

你自然知道球体的体积是随着它的半径的立方而增长的-根据通常的欧几里德几何知识的？）

In this course we will introduce the basic properties about curves and surfaces in three dimensional Euclidean space.

课程目的：介绍空间中之曲线与曲面的相关理论。

Of course, such petty-bourgeois individualists are unwilling to eulogize the ''.'deeds'.

这种小资产阶级的个人主义者，当然不愿意歌颂革命人民的''。

Euphemia, of course, spoke like a child, and had no experience.

当然，尤菲米雅说的是孩子话，也没见过世面。

In the course of giving and receiving information, people would like to choose euphemistic speech to achieve different communicative effect.

而在传递信息和理解信息的过程中，人们往往采用委婉的说法以达到不同的交际目的，但是在不同的文化背景下用不同的语言进行交际会产生一定的交际障碍。

No complex distressful things on your mind but only our love and care for each other.

无复杂痛苦的事情，对你的心，但只有我们的爱和照顾对方。

At first light, on his own initiative, Vick located the enemy emplacements andfired on them, using 15 rounds.

破晓时分，维克主动地去查找敌军的炮位并向它们开火，打了15发弹药。