Xanthophyceae
黄藻
🗣️ 情景例句
He was ill at ease with people whom he didn't understand.
他和不熟悉的人在一起感到不自在。
What are those?
那些是什么？
all admit radical changes of destination once the journey has begun;
他们无不承认，一旦"旅程开始，目的地"常有急剧的变化。