Part 1 字首 表示{方位}的字首 peri- = around, near 周围，附近
入门字
period (n.) 时期，句点
peri/ od
around/ way
进阶字
1. perigee (n.) 近地点
peri/ gee
near/ earth
In 1995, the perigee of the sun occurred at 11 A.M., Jan. 4, Greenwich mean time.
一九九五年太阳的近地点发生在格林威治标准时间一月四日上午十一时。
2. perimeter (n.) 周长，周围
peri/ meter
around/ measure
The perimeter of a square is four times the length of one side.
正方形的周长是边长的四倍。
3. peripheral (n.) 周边设备 (a.) 周边的
peri/ pher/ al
around/ bear/ 名词字尾
形容词字尾
A computer may enhance its function through adding on such peripherals as a printer, scanner or CD-ROM drive.
电脑如要加强功能可以添加印表机、扫描机或光碟机等周边设备。
4. periscope (n.) 潜望镜
peri/ scope
around/ look
A submarine just beneath the surface can observe ships through its periscope.
在水面下的潜艇可以用潜望镜观测船只。