Boundary relation
[化] 边值关系
🧩 词语组成解析
🗣️ 情景例句
No, thanks.
不用了， 谢谢。
Life is short and time is fleeting.
人生短暂，光阴易逝。
from which can be seen the strata the drill has been cutting through.
从中能看出钻头所钻透的地层。