He nodded absently.他漫不经心地点了点头。He nodded absently, his attention absorbed by the screen.他专心注视着屏幕，只是心不在焉地点了点头。She absently twisted her wedding ring.她心不在焉地搓动着她的结婚戒指....
He nodded absently,his attention absorbed by the screen.他专心注视着屏幕，只是心不在焉地点了点头。She absently twisted her wedding ring.她心不在焉地搓动着她的结婚戒指.He nodded absently.他漫不经心地点了点头。He nodded absently, his attention absorbed by the screen.他专...
He nodded absently.他漫不经心地点了点头。He nodded absently, his attention absorbed by the screen.他专心注视着屏幕，只是心不在焉地点了点头。She absently twisted her wedding ring.她心不在焉地搓动着她的结婚戒指....
She was silent, her eyes downcast.她一言不发，两眼低垂。Barbara looked increasingly downcast as defeat loomed.当败象已呈时，芭芭拉看上去越来越沮丧。Eyes downcast, she continued eating.她低垂双眼，不停地吃。...
A muscular spasm in the coronary artery can cause a heart attack.冠状动脉的肌肉痉挛可能导致心脏病。He almost bled to death after the bullet severed an artery.子弹穿过动脉，他失血过多几乎性命不保。Blood enters the kidneys via the renal artery.血液通过肾动脉流进肾脏。...
Cottonseed meal is deficient in lysine, methionine and leucine.?澍宸廴狈?蛋彼幔0蛋氨酸和亮氨酸.In plant cells the principal precursor of alanine , as well as leucine and valine, is pyruvate.植树细胞中丙氨酸和亮氨酸 、 缬氨酸的主要前体是丙酮酸.Decorin ( DCN ) ...