shoelaces

Here are a few options, catering to slightly different levels of formality:

Option 1 (Most common and natural):

• "I tripped because my shoelaces were untied." --> "我绊倒了，因为我的鞋带开了。" (Wǒ bàndǎo le, yīnwèi wǒ de xiédài kāi le.)

Option 2 (More emphasis on tying):

• "He had to stop and tie his shoelaces before running the race." --> "他比赛前不得不停下来系鞋带。" (Tā bǐsài qián bùdébù tíng xiàlái xì xiédài.)

Option 3 (Focus on the newness and length):

• "New shoes often come with long shoelaces." --> "新鞋通常配有很长的鞋带。" (Xīn xié tōngcháng pèi yǒu hěn cháng de xiédài.)