Restriction enzymes and reverse transcriptase are keys to gene engineering.

A semi-quantitative PCR was developed and used to demonstrate the transcriptase activity of the recombinant protein.

通过一种半定量PCR方法,检测到所表达的蛋白具有逆转录酶活性.

Scientists in the US have developed a powerful new genome editing system that could offer significantly more precision and efficiency than the current CRISPR standard.

美国科学家已研发出强大的新的基因组编辑系统，显著提高目前CRISPR标准的精度和效率。

The city essentially owes its fame and beauty to the Moors who transformed it into the Muslim capital of Spain

该城的声名与美丽基本上要归功于将它变成西班牙穆斯林之都的摩尔人。

Most Tongans are Wesleyans and go to three church services.

大多数汤加人是卫斯理会教派信徒,参加三种宗教仪式.

She always called at the vicarage whenever she was in the area.

只要她在那一带，她总会去拜访教区牧师。

Don't forget to bring your calculator that day .

那天你可别忘了带计算器。

Cross-check your answer by using a calculator.

用计算器核对一下你的答案.

I totaled my expenses with a calculator.

我用计算器算出开支的总金额.

I found a surplus store and bought a pocket calculator.

我找到一家出售剩余物品的商店,买了一台袖珍计算器.

A contact with a lightning calculator inspired him to study mathematics.

同快速计算器的一次接触,激励他去研究数学.

Cross-check your answers with a calculator.

用计算器核对一下你的答案。

The person of this individual was ungainly without being in any particular manner deformed.

此人的模样,虽说并没有特别的畸型残缺之处,但看上去极不匀称.

The tall man wobbled along ungainly.

这高大的男子笨拙地摇晃着向前行进.

He could indeed look a little ungainly.

可能他看上去的确有点笨拙.

But he as easily have been referring to the ungainly marvel that made it possible.

他所说的是整个任务,但他亦可能指的是达成一些令人惊叹的事.

On land the turtle is ungainly, but in the water it is very agil.

乌龟在陆地上很笨拙, 但是在水里却很灵活.

The dog, an ungainly mongrel pup, was loping about the road...

那只丑陋的杂种幼犬在马路上到处乱跑。

I thought him terribly ungainly when he danced.

我觉得他跳舞时显得极其笨拙.

What an ungainly creature a giraffe is.

长颈鹿长得实在太难看了!

He was a tall, ungainly boy of 18.

他是个个子高而笨拙的18岁小伙子。