Optothermal
光热
🗣️ 情景例句
How old are you, Gerald?
Gerald，你今年多大啦！
Use a book as a bee does flowers.
读书如蜜蜂采花，吸取其中之精华。
She walked slowly into the hall and at once noticed that all the room doors were open,
她慢慢地走进前厅，立即发现所有的房门都敞开着，