柯林斯詞典crab apple (crab apples) 1. N-COUNT A crab apple is a tree like an apple tree that produces small sour fruit. 山楂樹 返回 crab apple劍橋詞典(the small , sour fruit of) a small tree that has attractive flowers 酸蘋果（樹），花紅（樹），沙果（樹） a crab apple tree 花紅樹 返回 crab apple