Macrocystis
大昆布
🗣️ 情景例句
The course I took was above me.
我上的这门课太难了。
She looks blue.
她满面忧伤。
I've been working so hard recently that I haven't had any time for collecting new stamps.
最近我的学习一直很紧张，没有时间收集新邮票。