Tribasic
a. 三堿(價)的\\n[化] 三堿的; 三堿價的; 三元的; 三取代的
??? 情景例句
I have a call to make.
我需要打個電話。
We've only sold our product at trade fairs, not in an on-going sales campaign.
我們的產品只在商展時展售，而沒有辦促銷活動。
This one is empty. Could I have a full one, please?
我能有一個滿的嗎？