Bacillariophyceae
n. [植] 硅藻纲
🗣️ 情景例句
When you have a business meeting in the United States, come to the appointment on time.
当你在美国有商务会晤时，一定要按时赴约。
The (or A) beggar may sing before the thief (or footbad).
既是穷光蛋，何虑窃贼偷。
He's fine, thanks.How's Emma?
他很好，谢谢。埃玛好吗？