Hints: 本期學(xué)習(xí)的字源：peri-=around, near周圍，附近 11 A.M. Jan. 4 Greenwich CD-ROM 單詞不需要大寫，單詞與例句或不同詞條之間換行即可。 注解中詳細(xì)介紹了單詞的拆分與釋義，是學(xué)習(xí)字源分析的重中之重！一定記得聽寫后來看注解！
period perigee In 1995, the perigee of the sun occurred at 11 A.M. Jan. 4, Greenwich mean time. perimeter The perimeter of a square is four times the length of one side. peripheral A computer may enhance its function through adding on such peripherals as a printer, scanner or CD-ROM drive. periscope A submarine just beneath the surface can observe ships through its periscope.
In 1995, the perigee of the sun occurred at 11 A.M. Jan. 4, Greenwich mean time. 1995年太陽的近地點(diǎn)發(fā)生在格林尼治標(biāo)準(zhǔn)時(shí)間1月4日上午11點(diǎn)。 The perimeter of a square is four times the length of one side. 正方形的周長(zhǎng)是邊長(zhǎng)的四倍。 A computer may enhance its function through adding on such peripherals as a printer, scanner or CD-ROM drive. 電腦如要加強(qiáng)功能可以添加如打印機(jī)、掃描儀、光碟機(jī)等外圍設(shè)備。 A submarine just beneath the surface can observe ships through its periscope. 在水面下的潛艇可以用潛望鏡觀測(cè)船只。