Cavaletti
n. （用于训练马的）高度可调整的栅栏障碍
🗣️ 情景例句
Financial security, that's what it's all about.
家庭财政状况无忧，这就够了。
I don't know where I've seen him before.
我不晓得在哪儿见过他。
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。