水管工必须焊接铜管以确保接头不漏水。
The plumber had to solder the copper pipes to ensure a leak-free connection.
▼点击显示答案
解释
solder 在本句中指水管工焊接铜管的技术操作。
The plumber had to solder the copper pipes to ensure a leak-free connection.
solder 在本句中指水管工焊接铜管的技术操作。