Bob Goodman controls his bionic arm by contracting his biceps and triceps muscles.

鲍勃·古德曼控制他的仿生手臂收缩他的二头肌和三头肌肌肉。

It means contracting budgets, withholding resources, starving public services.

味着订立预算，保存资源，减少公共服务。

Inhale through your nose, and exhale slowly through your mouth. Push out by contracting abdominal muscles, feeling your stomach and hand move.

通过鼻子吸气，缓缓地通过嘴呼气。收缩腹部肌肉，将空气挤出，感受腹部和手的运动。

The economy is not contracting as it is today.

当时厄瓜多尔的经济不像现在样萎缩。

Fear of contracting the virus, a lack of childcare with children out of school and the cushion from $300 a week extra in jobless benefits.

担心感染冠状病毒、无法照顾停课在家的子女、以及失去每周额外300美金的失业救济金。

40,000 people a day are contracting COVID.

每天有4万人感染COVID。

By contracting the skeletal muscles around the external sphincter, urination can be stopped voluntarily.

通过尿道外括约肌附近的骨骼肌收缩，排尿过程可以受识支配而停止。

We all stayed very safe and because of the bubble that we were all in it gave us less of a chance of contracting the virus.

我们都非常安全，因为我们都身处隔离中，所以感染病毒的机会减少了。

Now, face masks may inspire confidence but what is the evidence that they actually protect the wearer from contracting the virus or prevent infected people from spreading the virus to others?

如今口罩可能会让人充满信心，但是它们能够保者不感染病毒或阻止人们把病毒传染给其他人的证据是什么呢？

And when we experience a change that we wouldn't have chosen for ourselves, it's easy to feel that our lives are contracting, that were more limited than before.

当我们经历身不由己的改变时，很容易感觉到我们的生活正在经受压力，且比以前更有受限感。

They move through seawater by contracting, or reducing the size of, their muscles.

它们通过收缩肌肉或缩小体积在海水中移动。

The risk of contracting the coronavirus is also in the back of Austin's mind.

奥斯汀也担心有感染冠状病毒的风险。

Experts said there is no danger of contracting Ebola from the vaccine.

专家表示接种疫苗的人感染埃博拉病毒并没有危险。

People who provide care to infected individuals are at highest risk of contracting the virus.

为感染者提供理的人员感染种病毒的风险最高。

So these are expanding and contracting, and they're punching and sending shockwaves very locally.

些气泡膨大着收缩着，它们猛击癌细胞，并在非常小的范围内发送冲击波。

A leading African-American artist, David Driskell, has died after contracting the coronavirus.

一知名非洲裔美国艺术家大卫·德里斯克尔因感染新冠肺炎去世。

By contracting their body, the water inside is forced out and the jellyfish moves forward.

通过收缩身体，体内的水份被挤出，水母便向前运动。

The sheer numbers of people now contracting the disease adds to the difficulty.

现在染上疾病的患者人数也使得应对难上加难。

A muscle contracting is all about sarcomeres contracting, bringing those Z-lines closer together.

肌肉收缩就是肌节收缩，使些 Z 线更靠近。

Now surveys suggest that both manufacturing and services are contracting gently.

现在调查显示，制造业和服务业都在温和收缩。