一一

一一 [yī yī]

1. ■ each; separately; each one; one by one; one after another:

一一告别 say good-bye to everyone;

一一核对事实 check facts one by one;

一一就座 seat themselves one after another;

一一申辩 justify oneself point by point

---

常用词组

1. ■ 一一对应 {数} linearity; monogamy; one-to-one correspondence; one-to-one transformation;

2. ■ 一一关系 {逻} one-one relation;

3. ■ 一一函项 {逻} biunique function;

4. ■ 一一映射 {数} one-one mapping; one-to-one mapping