Planetesimal hypothesis
星子假说
🧩 词语组成解析
n. 星子, 小行星体
🗣️ 情景例句
What are you getting at?
你想说明什么？
Wasn't the issue settled?
问题不是解决了吗？
She stood three feet high and her hands rested on her hips.
她身高3英尺，双手叉腰。