Perioidic system

[机] 周期系

🧩 词语组成解析

system ['sɪstəm]
n. 体系,系统;制度;身体;方法;
sy(syn-=together)+ste(to stand)→系统;体系;秩序;制度;方法

🗣️ 情景例句

I have two career opportunities at the same time.
我同时有两个事业机会。
We would appreciate it if you let us know whether you allow cash or trade discounts.
若能告知你方是否给现金折扣或商业折扣,将不胜感激。
I had forgotten all about the snails when Robert suddenly said that I must stay to dinner.
我把蜗牛的事已忘得一干二净,罗伯特突然提出一定要我留下来吃晚饭,这才提醒了我。
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