He knew that the west coast of India had been the site of an ancient impact of unknown age and size.
他知道印度西海岸是年代和规模未知的古代碰撞的发生地。
How parental age increases autism risks remains unknown, but several hypotheses exist.
父母年龄是如何加大孤独症风险的仍是未知数，但存在一些假设。
Suffering from anxiety and increasingly frequent bouts of mental illness throughout his life, he died largely unknown at the age of 37 from a self-inflicted gunshot wound.
终身饱受焦虑等精神疾病的折磨，37岁由于不明原因饮弹自尽。
The age at which the second language needs to be acquired to yield the protective effect is also unknown.
在什么年龄开始学第二门语言才能够产生推迟痴呆症的效果也是未知的。
Scientists believe the existence of this age-old reward mechanism indicates there is an evolutionary advantage in sampling the unknown.
科学家认为，脑部这种古老的奖励机制在尝试未知事物方面有进化优势。
Scientists believe the secret to the clams' longevity is a slowed cell-replacement process. But why they age so slowly is unknown.
科学家们认为蛤蜊长寿的秘诀在于其细胞代谢过程的缓慢，但是仍然不知道它为何如此缓慢。
He died at the age of 52 of throat cancer, and his body was found dumped outside his mother's house, presumably by unknown friends.
他于52岁时死于喉癌，遗体被发现留在他母亲的家外面，估计是同伴所为。
The skin's protective reaction of constricting surface blood vessels is slower with age, and the cold-induced rise in metabolic rate is also weakened in older people, but the mechanism is unknown.
随着年龄的增长，皮肤的保护性反应——表层血管的收缩减慢，对低温的反应可以增加代谢率，可老年人的代谢率却在不断减弱，哪一代谢机体的下降却不明。
Whether this "age of man" will be short or long is unknown, says Crutzen, who shared his Nobel for unmasking the man-made chemicals eating away at the atmosphere's protective ozone layer.
Crutzen由于揭示了人造化学物质吞噬大气层中的臭氧保护层而分享了诺贝尔化学奖，他说这一“人类时期”是长是短尚不得而知。
It must not, however, be supposed that on that account, as is often erroneously done, that the art of writing was unknown in the early Vedic age.
可是，一定不是由于这个缘故，照原来的样子是会经常出错的，我们并不知道早期的吠陀时期的书写艺术。
These were two relatively unknown players who were picked up by United at a young age.
这两人的相同点都是在年轻时默默无名的小辈被曼联看上带到了老特拉福德。
We walked a green age, we swagger towards the unknown tomorrow.
我们走过了青涩的年纪，我们昂首阔步迈向未知的明天。
Lymphangioleiomyomatosis (LAM) is a rare disease of unknown origin that usually occurs in women of reproductive age and people with tuberous sclerosis.
淋巴血管肌肉增生症是罕见的、病因未知的疾病，其通常发生在生育年龄的女性和患有结节硬化症的人。
Whether the decreased solar activity was somehow responsible for the little ice age is still unknown.
太阳活动的衰减是否会以某种方式引起小冰川期，这还不清楚。
Pulmonary lymphangioleiomyomatosis (LAM) is an uncommon disorder of unknown etiology affecting women of childbearing age.
肺淋巴血管平滑肌瘤是一个原因不明且罕见的疾病，侵犯对象以生育年龄女性为主。
The network is having changed people's life-style and values with hitherto unknown speed since entering Internet Age.
进入互联网时代以来，网络以前所未有的速度改变着人们的生活方式和价值观念。
The network is having changed people's life-style and values with hitherto unknown speed since entering Internet Age.
进入互联网时代以来，网络以前所未有的速度改变着人们的生活方式和价值观念。
应用推荐