Maintenance switching
[计] 维护轮换
🧩 词语组成解析
[计] 交换\\n[经] 转换, 调换, 调头
🗣️ 情景例句
What was your GPA last semester?
你上个学期的平均成绩是多少？
That house is for sale. It has central heating.
此房出售，房子里有供暖设备。
The more expensive kind of antique shop where rare objects are beautifully displayed in glass cases to keep them free from dust is usually a forbidding place.
高档一点的古玩店为了防尘，把文物漂亮地陈列在玻璃柜子里，那里往往令人望而却步。