-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
Uh, why does he always have to slam the door?
唉 为什么他老是砰一声地关上门
You have to study English, don't you?
你必须学英语，不是吗？
Today he is making a machine.
今天他在造一个机器。