Tubage
插管法
🗣️ 情景例句
During our stay in London, we visited Buckingham Place.
我们在伦敦逗留期间参观了白金汉宫。
Cowards are cruel.
懦夫不仁。
The best time to come to China is in spring or autumn.
到中国来，最好的时间是在春天或者秋天。