Bacillariaceae
[医] 硅藻科, 矽藻科
🗣️ 情景例句
He is burning the midnight oil.
他在挑灯夜读。
He has been to America.
他曾去过美国。[表示曾经有过的经验]
Oh dear! I must go. Have a good day!
哎呀！我得走了，再见。