帮我解释以下短语
问题描述：
帮我解释以下短语
1.work on air要怎么理解为兴高采烈?She has been walking on air ever since she won the competition.其中walk为何加ing,2.hapy as a clam 怎么读?
答
1 走在空气上,那就是悠然自得飘起来的样子 所以就是兴高采烈嘛,你高兴的时候不也是蹦蹦跳跳的嘛呵呵.She has been walking on air ever since she won the competition ever since 就是自从的意思
has + done 是现在完成时态 has+been +doing 是现在完成时的进行时态
2.[klæm] 蛤蚌,蛤肉 也可以指嘴紧的人