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China is a large and botanically diverse country and an understanding of its flora is essential to an understanding of the flora of the world.

中国是植物多样性极大丰富的国家，对中国植物区系的研究是认知世界植物区系的重要组成部分。

China is a large and botanically diverse country and anunderstanding of its flora is essential to an understanding of theflora of the world.

中国是植物多样性极大丰富的国家，对中国植物区系的研究是认知世界植物区系的重要组成部分。

While other skin care products use petroleum based fragrances and harsh synthetic cleansers, I have blended the finest essential oils and then added them to a 100% botanically based (head-to-toe) cleanser that is non-stripping and beneficial to skin, hair and scalp-gentle enough to use everyday.

当其他的护肤产品采用基于香料和刺激的合成石油化工原料的时候，我选择了最好的精油，并将它们与100%天然的植物成分混合，从而形成防剥落的对皮肤，头发，头皮有益的，非常温和的产品，适合每天的使用。

Botanically based, this light and fluffy non-greasy cream contains 100% Aloe Vera infused with herbs and essential oils known for their soothing and healing properties.

植物质地的基础，这款轻盈细腻不油腻的护肤霜含100%芦荟，同时含具有舒缓和治疗作用的草药和精油。

Then the following writing separately before the bottle gourd silk synopsis, musical instrument's maintenance and the maintenance, will play the preparatory work, the essential skill the study, the junior middle school high-quality music will play as well as the cordiality basically manifests these five parts, will unify oneself near three year teaching practice, brief will discuss me to the bottle gourd silk teaching understanding.

那么以下的文字将分别从葫芦丝简介、乐器的保养与维护、吹奏前的准备工作、基本技巧的学习、初中高级乐曲的基本吹奏以及情意体现这五部分，结合自己近三年的教学实践，简要的谈一下我对葫芦丝教学的理解。

Memorization, an essential part of interpreting, is known as the "bottle-neck" for information processing.

记忆是口译活动的核心环节，也是制约和困扰口译活动的主要"瓶颈"。

In the bounded linear operator approximation theory of Hilbert Space,the isolate point of operator essential spectrum is always a problem. In this paper,a general method to treat this problem is given.

孙辉在Hilbert空间线性算子逼近论中，算子本质谱的孤立点通常是处理一些问题的主要障碍之一，本文给出处理算子本质谱的孤立点的一般方法。

Based on the view that the theorem of closed mested interval is an axiom,this paper deduces the essential limit of monotonic bounded sequence of number and the Dedekind theorem,and proves the general theorem of bull closed nested interval of real number .

以通常所说的闭区间套定理作为公理推出单调有界数列存在极限和Dedekind定理，并且证明了通常所说的实数满闭区间套定理

The main jobs of this dissertation are as following: Chapter one firstly describes the essential of collision detection problem, according which most the collision detection algorithms were classified into seven categories. Then a survey on hierarchy bounding volume, surface simplification and the particle swarm optimization is presented, which is the basis of the new frameworks.

本文的主要工作为：第一章概述了碰撞检测问题，把目前的碰撞检测算法分为八大类，主要介绍了与本文算法相关的层次包围盒技术和基于随机方法的碰撞检测技术，并详述了作为BASIC-PSO碰撞检测算法基础的粒子群优化搜索技术。

"Liverpool Football Club have decided not to go ahead with the proposed transfer of Lee Bowyer for a variety of reasons."Manager Gerard Houllier was not convinced the player had either the hunger or desire to play for the club, qualities which are essential for any Liverpool player.

周日早上利物浦官方发布的消息称：利物浦将终止引进利兹中场Bowyer的买卖，Houllier认为他缺少为利物浦效力的雄心和渴望，这对任何一名利物浦球员来说是制关重要的。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。