词族 · clade
词形变化
英语词源
- clade (n.)
- "group of organisms evolved from a common ancestor," 1957, from Greek klados "young branch, offshoot of a plant, shoot broken off," from PIE *kele-, possibly from root *kel- (1) "to strike, cut" (see holt).
权威例句
- 1. A clade may contain many grades.
- 一个进化枝可能包括许多进化级.