under the same roof/under one roofTOGETHERin the same building or home 在同一屋檐下 If we’re going to live under the same roof, we need to get along. 我们要想住在同一个屋檐下，就得和睦相处。
Here you can buy food, clothes, and electrical goods all under one roof. 就在这一家店里你可以买到食物、衣服和电器。
live under the same roof• She only knew she was bitterly disappointed that she and Seb would not be living under the same roof.• Yet Shaker men and women lived under the same roof in large dormitory-like houses.
→ under the same roof/under one roof at roof1(4)