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
When Alexandra arrives,
等Alexandra到达时，
My father always gave an ear to my problems.
家父常常倾听我的问题。
The garden was soon littered with chunks of metal which had once made up a lawn mower.
一会儿工夫，割草机便被拆成一个个金属零件，乱七八糟地堆在花园里。