双双

When she finished the mending, she paired up the socks.

袜子补好以后, 她把它们一双双地放在一起。

By the engineering checking of the selected target section we found the gold mine in both prospecting trench and randing, and gained 1.5t gold resource.

通过对优选靶区的工程，槽、浅井双双见矿，共获黄金资源量1.5吨。