Periodically , the lamellae become enlarged, forming flattened, membrane - enclosed vesicles called thylakoids.片层周期性地扩展, 形成扁平的有膜为界的囊,称为类囊体.Mortality is the number or volume of trees periodically rendered unusable through...
他拒绝给儿子钱.He denied the money to his son.他拒绝给他们 长期 信贷.He refused to grant them long - term credits.他真是个狡诈的辩论家，总是拒绝给出直截了当的回答。What a shifty arguer he is, refusing ever to give a straight answer....
当他们靠近时，大象又吼又跺脚。The elephants trumpeted and stamped their feet at their approach.一群大象缓慢而笨拙地穿过平原，朝水潭走去。A herd of elephants lolloped across the plains towards a watering hole.他的精心之作是一件大象雕塑。His tour de force is an elephant s...
He turned to Alex and his tone was reproachful.他转向亚历克斯，语气里充满了责备。She glared at both of them with burning, reproachful eyes.她瞪着他们俩，目光中充满怒火和责备。She shot me a reproachful pout.她不满地朝我撅了一下嘴。...