Kernbut
断层外侧丘
🗣️ 情景例句
This weekend I'm going to install a home security system.
这个周末我要装一套家庭保安系统。
All is not at hand that helps.
有用的东西并不都是垂手可得的。
Many of the men fell sick with fever.
许多人因发烧而病倒。