Cyanophyta
藍藻門
??? 情景例句
You'll need to hurry up, or you'll miss the train.
你得快點，否則趕不上火車。
I envy you.
我羨慕你。
How would you go to Beijing, by air or by train?
你怎樣去北京，是乘飛機還是坐火車？