Polyterpene
多萜(烯)
🗣️ 情景例句
Your show doesn't begin until eight thirty.
你的展览八点半才开始。
Please do now hesitate to as any questions.
如有问题您可随时提出来。
You're never too old to enjoy a Christmas stocking.
“你永远不会老到不能享受圣诞袜的乐趣，”