2024年1月7日 - 说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将... (SZm)形如20(有限的)之外是有限的,这个结果称作Sen℃有限定理(...

2010年6月9日 - 点击 收听单词发音 n.羽毛;v.整理羽毛,骚首弄姿,用羽毛装饰 Her hat was adorned with a plume.她帽子上饰着羽毛。 He does not plume himself on t...

点击 收听单词发音 n.雷达,无线电探测器 They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。 Enemy ships were detected on th...

点击 收听单词发音 目击者( eyewitness的名词复数 ) The examination of all the eyewitnesses took a week. 对所有证人的质询用了一周的时间。 Several eyewitnesses t...