lead-free

例句：

1. 1.We need to ensure that all products are lead-free for the safety of our children.
   我们需要确保所有产品都是无铅的，以确保我们孩子的安全。
2. 2. The new car is lead-free, which means it doesn't contain any lead in its paint.
   这款新车是无铅的，意味着它的油漆中不含有铅。
3. 3.Many household cleaning products are now lead-free, making them safer for people with allergies.
   许多家庭清洁产品现在都是无铅的，这使得它们对有过敏反应的人更安全。