Bai Xiao went out to buy groceries; with two extra people at home, she and An Zhiyuan usually buy food as needed. The market is close by, so it's not a hassle, and they don't stock up on food at home.
An Zhiyuan doesn't come home for lunch since he's already reported back to the army; he only returns for dinner.
Bai Xiao came back carrying bags of fruits, vegetables, meat, and eggs. As soon as she entered, Bai Na took the things from her hands, "Doctor Bai! I should have gone with you. I'm strong, let me handle these heavy tasks from now on."
Seeing how strong Bai Na really was, Bai Xiao took a breath, drank some water, and was surprised.
How much work had Bai Na done while she was gone?
The yard was swept clean, even watered; the window glass was wiped until it shone brightly. Even the furniture at home was polished until it sparkled. Who knows how much water Bai Na used.