A hyperbola approaches but does not meet its asymptote.双曲线逐渐接近它的渐近线但不相交.An asymptote is a line or curve that approaches a given curve arbitrarily closely.所以渐近线也可能是一条曲线.不过方便起见我们都讨论渐近“线”.He and the design firm Asymptote co...
Astronomers can calculate when there will be eclipses of the sun and moon.天文学家可以算出何时发生日食和月食.Maugham agreed with Kelly that the new painting eclipses all else.毛姆同意克利的意见,说这幅新画使所有别的画黯然失色.Astronomers can accurately foretell ...
Well-dressed clients were talking in polite undertones as they ate.衣着光鲜的顾客们边吃边斯文地低声聊着天。His mother leaned forward and spoke to him in urgent undertones.他母亲身子前倾，小声而急切地跟他说话。...a witty, racy story with surprisingly serious u...
a free-form jazz improvisation自由创作的爵士乐即兴演出Most of their music was spontaneous improvisation.他们的大部分音乐作品都是即兴创作的.He coached the young man in the theatre and developed his power of improvisation.他辅导那位年轻人演戏,培养他的即席表演能力....
Carelessly,I knocked my teacup over and the tea went all over the tablecloth.我不小心把茶杯打翻了,洒得桌布上一塌糊涂。He carelessly bestrews the ground with biscuits.他不小心把饼干撒落了一地.She was fined £100 for driving carelessly.她因开车违章，被罚款100英镑。She...
引诱剂, 排斥剂还是其他的兴奋剂都是嗅觉物质, 但刺激剂和阻抑剂常常是味觉物质.Whereas attractants, repellents, and many incitants are olfactory substances , stimulants, and deterrents are usually gustatory.报道了家蝇引诱剂———诱虫烯的合成,该方法简单、便利,适用于工业化生产.The synthesis of...