Planarea
直线面
🗣️ 情景例句
Thank you,
谢谢你。
Many new ideas are discovered during college years.
大部分崭新的观念都产生于大学时代。
Now that a tunnel ahs been built through the mountains, the Pass is less dangerous,
如今由于山里开挖了隧道，翻越山口已不那么危险了。