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
Thank you. Yes, actually Mary and I have been planning this for some time.
谢谢。其实玛丽和我已计划了很久。
Please slow down.
请慢一点。
In the evenings he studied hard for his exams, and most mornings he took tourists around Oxford.
他晚间努力学习，以应付考试，而大多数早上，他则带领游客在牛津大学参观。