身材瘦削而且训练艰苦的女运动员行经可能不那么频繁，或者根本不来月经。Lean hard-training women athletes may men-struate less frequently or not at all.妇女的平均月经周期是28天。The average length of a woman's menstrual cycle is 28 days.她于13岁开始有正常的月经,周期为28～32天,有轻度的...
We're dismal enough without conjuring up ghosts and visions to perplex us.用不着招神现鬼来缠我们,我们已够惨的啦.This problem is hard enough to perplex even the teacher.这个问题确实很难,以至于老师都迷惑不解.I have no wish to perplex the issue.我不想使问题复杂化...
Objectivefunctional magnetic microspheres for the separation of vascular endothelial growth factor ( VEGF ) nucleic acid and lactase enzyme immobilization.此外,固定化乳糖酶实验结果显示固定化酶的量与磁性微球的量成正比.By the research, the dephosphoriz...
His hair has reverted back to its original copper hue.他的头发又变回原来的淡红棕色。His face took on an unhealthy whitish hue.他的脸上透出一丝病态的苍白。The diamond shone with every hue under the sun.金刚石在阳光下放出五颜六色的光芒....