Delayed action accelerator
[化] 延迟促进剂; 后效性促进剂
🧩 词语组成解析
a. 定时的；延时的
action
['ækʃən]
n. 行动，活动;功能，作用;手段;[法]诉讼;
accelerator
[æk'seləreitə]
n. 加速器;催速剂;
🗣️ 情景例句
autograph copies for the guests at the opening?
在展览开幕时为客人在书上亲笔签名呢
Apothecaries would not sugar their pills unless they were bitter.
好药不苦不会加糖衣。
What did you say?
你说什么？