Underground work is slow going, because construction crews often unearth mosaics, frescos, marble.

程目前进展缓慢，因为施人员经常挖掘出镶嵌画、壁画和大理石。

Well, perhaps you haven't been looking hard enough.

可也许还没有夫去。

They are coming from work in the yard.

那都是从船坞的人们。

Somebody went to a lot of time and expense.

有人为此很夫。

" And you ought to put in a bit more effort on your Occlumency from now on."

“从现在起夫练大脑封闭术。”

And thus there would be the potential of underground engineering that was done by those of a different scientific period of time.

因此，就有可能存在由不同科学时期的人进行的程。

Sometimes after work, I go to the park and feed the birds.

后我去公园喂鸟。

We haven't even completed that substructure floor yet.

程的面尚未完。