Retarder
n. 阻滞物\\n[化] 阻滞剂; 迟延剂; 抑制剂; 阻聚剂
🗣️ 情景例句
It's us, Susan.
是我们， Susan。
I wrote novels yesterday.
我昨天在写小说。
In summer, people like to go sailing, swimming, horse-riding, and rock-climbing in the mountains.
夏天，人们喜欢去扬帆航行、游泳、骑马，还到山里去攀岩。