Self-maintaining
自然冲淤
🧩 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;
[化] 维护; 保养
🗣️ 情景例句
I suggest you give her a call straight away.
我建议你立即打个电话给她。
Our packing charge includes $1 for the drum, which sum will be credited on return.
包装费中有1美元是包装桶的费用，此费用在桶还给我们时可退回。
The six students put their closed hands in front of them.
6个学生将握紧的手放在前面。