To be hesitant and indecisive; equivocate说话吞吞吐吐，支支吾吾；含糊其词
柯林斯高阶英汉双解学习词典释义
N-COUNT
（衣物等的）褶边，卷边;（裙子的）下摆
A hem on something such as a piece of clothing is an edge that is folded over and stitched down to prevent threads coming loose. The hem of a skirt or dress is the bottom edge.
VERB
缝…的褶边;给…镶边
If you hem something, you form a hem along its edge.