Conservation of matter
[化] 物量守恒; 物质常住
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
matter
['mætɚ]
n. 事件;（讨论、考虑等的）问题;重要性;物质;
vi. 要紧，重要;化脓;有重大影响;有重要性;
🗣️ 情景例句
Did everything go all right?
一切都顺利吧？
He's absorbed in his book.
他全神贯注地读书。
They have been told that rescue operations are progressing smoothly.
他们一直被告知营救工作进行得非常顺利。