Aster yellows
紫菀黄化病
🧩 词语组成解析
aster
[['æstə]]
n. 紫苑属植物\\n[医] 星体
[医] 钩端螺旋体性黄疸
🗣️ 情景例句
for Michelle and me to get to know each other better.
让Michelle和我彼此更了解。
If it doesn't rain tomorrow, will you do a favor for me?
如果明天不下雨的话，你会帮我忙吗？
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。