Naphthaldehyde
萘甲醛
🗣️ 情景例句
He speaks French and English with equal ease.
他说法语和英语都一样自如。
Empty vessels make the greatest sound.
空桶响声大。
first, those whose work is work and whose pleasure is pleasure;
第一类是分清工作是工作，娱乐是娱乐的人；