英汉双语例句-生物医药大词典

B Maintain vigilance at points of entry and conduct security operations at land and sea borders based on prevailing threat levels.

中文意思：
因应当时的威胁程度，保持各入境关口人员的警觉性，并在水陆边界进行保安行动。

以下为相关句子列表(点击查看，可以看对应的解释）：

	B It's such a big ace.			那里的空间如此之大。
	B Join these pairs of sentences. Use the joining words in parentheses. Do not refer to the passage until you finish the exercise.			用括号中的连词将每组句子连到一起，完成练习后再对照课文核对你的答案。
	B Just ask at the Reception Desk. They'll direct you to the Business Centre and tell you everything you need to know.			问服务台就可以。他们会领你到商务中心，并且告诉你你想了解的所有事情。
	B Just outside the hotel in the parking lot.			就在旅馆的外面的停车场。
	B Let me write it down on this slip of paper for you. You can show it to the taxi-driver.			我给你写在一个纸片上。你给出租车司机看看就行了。
	B Maintain vigilance at points of entry and conduct security operations at land and sea borders based on prevailing threat levels.			因应当时的威胁程度，保持各入境关口人员的警觉性，并在水陆边界进行保安行动。
	B Maybe I should try it too.			也许我也应该试试跑步。
	B Maybe I'll take the bus home, or the metro.			也许我会坐公共汽车回家，或者地铁。
	B Maybe we should try another place. This shop is very pricey.			也许我们应该到另一个地方去看看。这家商店太贵了。
	B Maybe we'll go for a walk, do a little shopping.			也许我们去散步，买点东西。
	B Me too. It was colder last week.			我也希望。上周天气比较冷。