Could you help me tie the shoelace ?

你能帮我系上鞋带吗？

He stopped to tie up his shoelace .

他停下来系鞋带。

The creek looked like a shoelace , the trees looked like green toothbrushes .

小河看起来和鞋带差不多，数目看起来就像绿色的牙刷。

He can carefully discover my shoelace has been loose .

他能细心地发现我的鞋带松了.

He saw the man tying up his shoelace .

他看见那人在系鞋带。