Leadless
a. 无铅的
🗣️ 情景例句
I ran into Stone at the supermarket this morning.
早上我在超级市场碰见世通了。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
'I'm hanging this picture on the wall,' I answered.
我正将图片挂到墙上去呢，我回答