长元音：[Oi] 有哪些单词.至少5.个 短元音 ：[O] 有哪些单词.至少5.个
问题描述：
长元音：[Oi] 有哪些单词.至少5.个 短元音 ：[O] 有哪些单词.至少5.个
答
boil
join
coin
答
长元音：all ball tall wall hall short for four
短元音：hot dog not lot nod box got
答
长：thought bought short tall hall for floor
短：not hot got box tomorrow
答
toy,boy.