水箱和屋顶都需要敷设严密的保温层。Water tanks should be well lagged and the roof well insulated.从防守高度严密的监狱的集体越狱a mass breakout from a top security prison这一地区周围设有严密的安全警戒圈.There is a tight security cordon around the area....
在拿吃的之前，用热肥皂水把手好好地洗干净。Wash your hands thoroughly with hot soapy water before handling any food.请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。Return the enclosed Donation Form today in the prepaid envelope provided.他把聪明都用在了犯罪上，太可惜了。Too bad...
以单质碘为催化剂合成了环戊酮乙二缩酮.Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.传统的缩酮化、酯化反应工业上多采用浓硫酸作催化剂.Traditional ketalization and esterification reactions are usually catalyzed by concentrated acid in industr...
骄傲的朋友是愚蠢和无知.Conceit is associated with stupidity and ignorance.骄傲的女孩子在学校常常不受人欢迎.A haughty girl is always unpopular at school.骄傲的新娘骑在桥脊上对着云大声喊。Riding on the ridge of the bridge, the proud bride shouts loudly to the cloud....