X particle
n. 粒子, 介子
🧩 词语组成解析
🗣️ 情景例句
that I never could have done this book
我不可能完成这本书
It is too late to cast anchor when the ship is on the rock.
船触礁后在抛锚，为时已经太晚了。
many of them serious and senior scientists---- who dream of sending people to it.
其中的不少人是认真和资深的科学家，他们一直梦想着把人送上火星。