subs的中文意思、音标与词形变化

n. 地铁；潜艇；替补队员（sub的复数）

n a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States n a submersible warship usually armed with torpedoes v be a substitute