Serpentinite
n. [地]蛇纹岩
🗣️ 情景例句
Alexandra's coming over to help me
Alexandra就要来帮我
Don't forget to put stamps on your letter.
别忘了贴邮票。
and the railway of the future may well be the 'hovertrain',
未来的火车或许能成为气垫火车，