Self-activity
n. 自动；自发活动
🧩 词语组成解析
self
[self]
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
Tongue muscles'training is of great importance in learning any foreigh language.
口腔肌肉训练在学习任何语言时都是非常重要的。
Drugs were the death of him.
毒品断送了他的生命。
After jumping about on the carpet and twisting the human frame into uncomfortable positions,
我在地毯上跳来蹦过去，扭曲身子，摆出各种姿势，弄得浑身不舒服，