Lifting weights will build arm and shoulder muscles.

举重会使手臂和肩膀肌发达。

The runners flexed their muscles as the preparatory activities for the race.

"赛跑选手们伸屈四肢,放松肌以此作为比赛前准备活动。"

He’s flexing his muscles, waiting for the day he becomes president.

他在摩拳擦掌，等着成为总统那一天。

Arrector Pili are tiny muscles attached to the base of the hair follicles.

竖毛肌（立毛肌）是一些附着在毛囊底部细小肌。

The flexibility of a man's muscles will lessen as he becomes old.

人老了肌韧性将降低。

The facial nerve -s the muscles of expression.

面部神经促 使表情肌活动。

We should constantly exercise our muscles.

们当经常锻炼肌。

Gather up your muscles and jump.

收紧肌, 然后起跳。

Gosh! My muscles is going to ache all over tomorrow.

哎呀！明天肌都会痛了。

My father was a hard-fisted truckdriver with muscles of steel.

父亲是个有着钢盘铁骨般体卡车司机。

High placement may overstretch the joint capsule, the muscles, or the tendons.

关节囊，肌或肌腱可能会因过度伸展而受伤。

Arm flat and muscular.Bone substantial but not coarse and muscles hard and devoid of flabbiness.

臂膀平且肌发达，骨骼坚实，但不粗糙，且肌坚硬，没有软弱无力样子。

Cheeks--Well developed chewing muscles, but not so much that "cheekiness" disturbs the rectangular head form.

面颊部咬合肌发达，但不能太夸张以至于变成“厚脸皮”，而破坏了矩形头部整体外观。

A muscle in his jaw pulsed angrily.

他下巴肌愤怒地抽动着。

The runner has firm muscles.

那个赛跑运动员有一结实肌。

The muscle fiber of this animal is diseased.

这个动物肌纤维产生了病变。

Muscle flexor digitorum profundus in rabbit was ring pennate.

家兔趾深屈肌为环羽肌。

The hornworm has just 70 muscles per segment, with just one nerve controlling each muscle, for the most part.

蠕虫每节有70根肌，每根肌大多只由一根神经控制。

Why is the person's cranial nerve incontrollable cardiac muscle activity?

为什么人脑神经不能控制心肌活动?

Push against temptation and you will get muscle in your character.

如果你能抵制诱惑, 你性格就会坚强起来。