跷: Ⅰ动词1.(抬起; 竖起) lift up (a leg); hold up (a finger) 短语和例子跷起大拇指 hold up one's thumb in approval; thumbs up; 跷着腿坐着 sit with one's legs crossed2.(脚后跟抬起, 脚尖着地) on tiptoe 短语和例子跷着脚走路 walk on tipto
足以: enough; sufficient 短语和例子这些事实足以证明她是对的。 these facts are enough to prove that she is right
