Semialdehyde
半醛
🗣️ 情景例句
He is tough in doing everything.
他不管做什么事都很有毅力。
Practice is better than precept.
身教胜于言教。
Then anyone who wants to can go for a walk round Aswan after the boat trip.
那么，想乘船的人就可以在乘船游览之后到阿斯旺各处走走。