Parodontology
牙周病学
🗣️ 情景例句
Performing arts--performing arts centers.
表演艺术-- 表演艺术中心。
Please bring me a glass.
请给我一杯。
You go to the school office and telephone the police. Please hurry up!
“你去学校办公室给警察打电话。请快一点！快点！”