英汉双语例句-生物医药大词典

This daytime darkening is valuable for protection against enemies and sunlight, and for many years it was thought to be a simple response by the crab to the sun-just as if we were to get a tan during the day and lose it at night.

中文意思：
这种白昼黑化是针对敌人和阳光的有价值的自我保护，很多年以来，它被认为是蟹对于太阳光的一种简单反应，就像我们人类白天皮肤被太阳晒黑，晚上又会白回来。

以下为相关句子列表(点击查看，可以看对应的解释）：

	This day is commemorated as the anniversary of the founding of the People's Liberation Army.			这一天在中国以“建军节”的名义每年得以纪念。
	This day lunch time is at a filling station which is quite practical as all of them have toilets.			今天在一家加油站吃中餐，在台湾所有的加油站都提供卫生间使用。
	This day they will halt at Nob; they will shake their fist at the mount of the Daughter of Zion, at the hill of Jerusalem.			32当那日，亚述王要在挪伯歇兵。向锡安女子的山，就是耶路撒冷的山，抡手攻他。
	This day we fight ! By all that you hold dear on this good earth !			今天我们要战斗！以在这片美好的土地上你们所珍视的一切来起誓！
	This day will go down in history.			这一天将被记在历史上。
	This daytime darkening is valuable for protection against enemies and sunlight, and for many years it was thought to be a simple response by the crab to the sun-just as if we were to get a tan during the day and lose it at night.			这种白昼黑化是针对敌人和阳光的有价值的自我保护，很多年以来，它被认为是蟹对于太阳光的一种简单反应，就像我们人类白天皮肤被太阳晒黑，晚上又会白回来。
	This deadweight loss is a form of economic inefficiency that must be taken into account when policies are designed and implemented.			这种净损失是经济无效的一种表现，在政策制定和实施的过程中，必须被考虑的。
	This deal comes with a string attached we first have to pay for their director's membership in a fancy private club.			这交易是有代价的，我们先要替主任付特殊的私人俱乐部的会费。
	This dear little naked mendicant pretends to be utterly helpless, so that he may beg for mother's wealth of love.			这个可爱的小小的裸着身体的乞丐，所以假装着完全无助的样子，便是想要乞求***爱的财富。
	This debate mixes up three arguments—about inequality, meritocracy and immigration. The word that America should worry about most is the one you hear least—meritocracy.			这场争论涉及三个论题--不平等,贤能主义和移民.美国应最关注的词是最鲜见的--贤能主义.
	This debate, writ large, is the biggest controversy in American health care today.			显而易见，这是针对当今美国医疗保障制度最激烈的一场论战。