Valerolactone
戊内酯
🗣️ 情景例句
What's the deadline for claim?
索赔的有效期多长？
It's all personal effects.
这些东西都是我私人用的
yet following her regular practice she had shut them before going out.
而她记得在出门买东西前，她按老规矩是把房门一一锁上的。