Planetesimal hypothesis
星子假说
🧩 词语组成解析
n. 星子, 小行星体
🗣️ 情景例句
When does the next train leave for New York?
到纽约的下一趟火车什么时候开车？
Better is the neighbour's hen than mine.
人莫知其苗之硕。
In summer, people like to go sailing, swimming, horse-riding, and rock-climbing in the mountains.
夏天，人们喜欢去扬帆航行、游泳、骑马，还到山里去攀岩。