Lactonic ring

[機] 內酯環

?? 詞語組成解析

lactonic
a. [化]內酯酸的, 無水氫氧酸類的
ring [ri?]
n. 戒指,指環;鈴聲,鐘聲;環形物;拳擊場; vt. 形成環狀;環繞;使(例如鈴)響;打電話給; vi. 按鈴,敲鐘;回響;成環形;

??? 情景例句

I could pay you back out of my lifeguard salary.
我可以從我當救生員的薪水中拿出來還你。
I plan to be here for over a year.
我計劃在這里住一年以上。
Looking up I saw that we were surrounded by children in rags who were looking at us silently as we ate.
我抬頭一看,發現我們被一群衣衫襤褸的小孩團團圍住了,他們在默不作聲地看著我們吃飯。
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