词族 · cline
词形变化
中文词源
cline 渐变群
来自PIE*klei,倾斜，词源同lean,incline.词义由倾斜到渐变。
英语词源
- cline (n.)
- 1938, in biological use, back-formation from incline or from Greek klinein "to slope, to lean" (see lean (v.)). Middle English had clinen (v.) "to bend, bow," from Old French cliner, from Latin clinare.
权威例句
- 1. Such a range of variation is termed a cline.
- 这样一个变异区域称为梯度变异.
- 2. Callaham and Liddicoet found an elevational cline in ponderosa pine from Northern California.
- 卡拉汉和利狄柯特发现加利福尼亚北部产的黄松有一海拔渐变群.
- 3. Often individuals at either end of a cline are reproductively isolated.
- 通常,在两个变异群中的个体是繁殖隔离的.
- 4. The expanding enrollment of college and university result in the de - cline of teaching quality.
- 全国高校大规模扩招,使一些学校教学质量有所下降.