Heptyne
庚炔 1-heptyne 1-庚炔
🗣️ 情景例句
Michelle and her friends are at the aquarium in Brooklyn.
Michelle和她的朋友们在参观 Brooklyn的水族馆。
I am really proud of my department and my staff.
我为我的部门和员工们感到骄傲。
This race, which went on for exactly four exactly four months, was the last of its kind.
这场比赛持续了整整4个月，是这类比赛中的最后一次，