Polyformaldehyde
聚甲醛
🗣️ 情景例句
I was counting on more.
我期待着会比这要要。
Experience is the mother of wisdom.
智慧来自经验。
both men were genuinely sorry that they had to leave.
这二位不得不离开那个荒岛时，还真的感到遗憾呢！