They can tense up, they might tense their shoulders, they might tense their fingers.

他们可能神经紧绷，他们的肩膀可能会绷紧，他们也可能会绷紧手指。

Just as the body tightens with age, however so does the mind.

正如身体会随着年龄的增长而绷紧一样，头脑也会随着年龄的增长而绷紧。

Buck threw himself forward, tightening the traces with a jarring lunge.

巴克挺身向前，一个冲刺绷紧了缰绳。

Clench them and you hold in the gold.

绷紧它们你就可以憋住。

This is the same amount of tension that you need to hold the 'th' position.

这和发“th”音舌头的绷紧程度是相同的。

Notice that the tongue is not completely relaxed, there's a little tension.

注意舌头并不是完全放松的，要稍微绷紧一下。

His face was tight as he explained.

他的脸绷紧了，他解释。

Buck tightened the traces, then slacked them for a matter of several inches.

巴克先把缰绳绷紧，然后又把它放松了大约几寸。

I could literally see people's back straighten as they started to speak into the microphone.

我甚至能看到人们开始对着麦克风讲话时后背都绷紧了。

Their minds are relaxed and not straining on a particular task.

他们的大脑是放松的，而不是绷紧在一个特殊的项目上。

Professor Trelawney has stiffened as though unable to believe her ears.

特里劳妮教授浑身一下子绷紧了，似乎无法相信自己的耳朵。

They vocalised, tensed their muscles, arched their backs, and fussed or cried.

他们发出声音，绷紧肌肉，弓起背，开始烦躁或哭泣。

This is one, relaxed and slumped, and here is the other, upright and tense.

第一个 ，放松的，倒下的；另一个，坐直的，绷紧的。

He took a step back from me, his jaw suddenly clenched.

他朝后退了一步，下巴突然绷紧了。

Hans paid out the rope, permitting no slack, while Pete kept it clear of coils.

汉斯放出绳子，并且让绳子绷紧，而皮特则把绳子整理了一下，不使绳子打结。

They're tense so they get tired and as they're tired they get more tense. Tired, OK.

肌肉绷紧导致肌肉疲劳，肌肉疲劳以后会导致肌肉更紧。疲劳，好。

Duhobret labored three years in this way, giving himself no time for exercise or recreation.

杜霍布赖特以这种方式受了三年的苦，既没有机会练习，也没有时间使自己绷紧的神经得到放松。

" What is it? " I was surprised to see that his jaw was clenched, his eyes disturbed.

“那是什么？”我惊讶地看到，他的下巴绷紧了，眼里写满了困扰。

He yawned widely, so that his scars stretched, and his lopsided mouth revealed a number of missing teeth.

他大大地打了个哈欠，脸上的伤疤都绷紧了，歪斜的嘴里缺了几颗牙齿都能看见。

Yeah, exactly. Excuse me so somebody's face will freeze over, or... or the features will go all taut.

是的，没错。不好意思，有人的脸会僵住，或者… 或者五官会绷紧。