n. 自己;本人;本性;私利;
adj. 同一的;纯净的;单一的;
vt. 使自花授精;使近亲繁殖;
vi. 自花授精;
🗣️ 情景例句
Perhaps we could see the house this weekend.
也许这周末我们会去看看这栋房子。
When the fire started, I was writing letters.
当火起来的时候,我在写信。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.