英汉双语例句-生物医药大词典

This was a challenge, because the permafrost is barely permanent.

中文意思：
这是一大挑战，因为这里的冻土并非永久不变。

以下为相关句子列表(点击查看，可以看对应的解释）：

	This was UNHCR's first major emergency relief operation in the post-Cold War era.			这是冷战后联合国难民署的第一次大规模紧急救援行动。
	This was Vanessa, a good girl, who had the strictest parents, who often came home from school, went into the house and did not resurface until the bus arrived the next morning.			多好的女孩，有着严厉的父母，她总是放学回来，回到家里，然后直到第二天早晨校车到来之前都足不出户。
	This was a Rotary interaction that left a deep impression on him and taught him how true philanthropy comes from the heart.			这就是一种扶轮的互动让他印象深刻并让他看到真正发自内心的慈悲心。
	This was a big advantage as I was an apprentice engineer and did not earn much money.			这是一个很大的优势,因为我是一名见习工程师,并没有赚到钱.
	This was a bit exhausting for the first lady.			这对第一夫人来说，真的是让她精疲力尽了。
	This was a challenge, because the permafrost is barely permanent.			这是一大挑战，因为这里的冻土并非永久不变。
	This was a crafty manoeuvre to outwit his pursuers.			这是一个高招,他以此骗倒了追逐他的人.
	This was a cross-sectional study involving 100 patients selected by purposive sampling over a seven month interval, and two medical centers, in Kaohsiung and Tainan.			研究以横断性调查研究法，采立意取样方式，针对南部两间医学中心妇产部进行为期7个月收案期，共收集100位子宫颈癌病人。
	This was a cute strategy.			这真是一条妙计。
	This was a defensive pact, designed to protect Germany against the French, who aspired to recover the alsace-Lorraine provinces lost in 1871, and also to protect Austria-hungary against the Russians, with whom they continually clashed in the Balkans.			这是一个防御性的盟约，旨在保护德国人免受法国人的攻击，保护奥匈帝国免受俄国人的攻击；因为法国人想收复1871年失去的阿尔萨斯-洛林地区，而俄国人则在巴尔干半岛同奥匈帝国接连不断地发生冲突。
	This was a defensive wall.			这可是防御敌人的城墙啊。