Nitromesitylene
硝基-1,3,5-三甲苯
🗣️ 情景例句
If I fail this exam I'll fail the course.
我要是考试没通过，这门课就没学分了。
All things are easy that are done willingly.
做事乐意，诸事容易。
but Captain Fawcett did not take him because the trip was too dangerous.
弗西特机长之所以不送他去，是因为那段飞行太危险了。