Sigma bond

[化] σ键

🧩 词语组成解析

sigma

[计] 求和\\n[医] σ(希腊文第十八个字母)

bond [bɑnd]

n. 纽带;联系;债券;保释金; v. 使结合;建立互信关系;与…紧密联系;与…黏合;

bond(to bind)→束缚；债券；契约；保证人

🗣️ 情景例句

before Michelle and her friends arrived.

在Michelle和她的朋友们来之前。

I met one of the newscasters over at the television station.

我在电视公司遇到一位新闻播音员。

I have some difficulty in pronouncing some of the words in English.

我有些英语单词发音不好。

更多情景英语 ›

🔤 更多 S 开头的单词

saturated staining solution

schreiner

separate income

simsim

sleep sth away

solidus-liquidus curve

spin doctor

string language

全部 S 开头单词 ›