-ed
附在规则动词后构成过去式和过去分词；附在规则动词和名词后构成同义形容词
📖 牛津释义
-ed
(also -d), suff 後缀 (with ns forming adjs 与名词结合构成形容词) having (the characteristics of); affected with 有（某种特徵）的; 受...影响的: talented
bigoted * diseased * quick-witted .
🧩 词语组成解析
Ed
[ed]
Estimate Departure time 预计起飞时间;Engineering Development 工程研制;Effective Dose 有效剂量;
🗣️ 情景例句
It hung over Susan's crib.
Susan的小床也曾有过。
I'm sorry to keep on coughing.
我不停地咳嗽，真是抱歉。
How long will your offer hold good?
一般你们报价的有效期是多长？