Sigma hyperon
[化] σ超子
🧩 词语组成解析
[计] 求和\\n[医] σ(希腊文第十八个字母)
n. 超子\\n[化] 超子
🗣️ 情景例句
Tom gave Helen an apple in exchange for a piece of cake.
汤姆用一个苹果和海沦换一块蛋糕。
Poor without debt is better than a prince.
穷人无债胜王子。
Two return tickets to London,please.
买两张到伦敦的往返票。