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
I wish he felt better.
我真希望他现在好一点。
When the ffish is caught the net is laid aside.
鱼获网弃。
we quickened our pace and made our way rapidly towards the stream where we hoped the boatman was waiting.
快速地朝深溪边走去，希望船夫还在那儿等着我们。