Carbonaceous matter
[建] 含碳物质
🧩 词语组成解析
a. 碳的, 碳质的, 含碳的\\n[建] 含碳的
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
Reading childern's literature is an excellent way for the beginning English speaker to improve.
对于刚刚开始学说英语的人，阅读儿童文学读物是个不错的方法。
What were you doing this time last year?
去年这时候你在干什么？
I wrote: Best wishes for Teachers' Day!
我写道：“谨致以教师节的良好祝愿！”