-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
If you're not sure, then the answer should probably be no.
如果你不确定，那么答案可能就是“不”了。
Those that make the best use of their time have none to spare.
能充分利用时间的人不会有时间多馀。
America, Russia and Europe are filled with enthusiasts----
美国、俄罗斯和欧洲都有许多热心此项事业的人