ceiling

so many false dawns with self-driving, where you think you've got the problem, have a handle on the problem—and then, no, turns out you just hit a ceiling.

但實際上並非如此，結果發現只是撞到了天花板。

But if she's cooking, she's dealing with people on the phone, she's talking to the kids, she's painting the ceiling -- (Laughter) she's doing open-heart surgery over here.

但如果她在做飯，她還得接電話、陪孩子說話、刷天花板——（笑聲）簡直像是在做開胸手術一樣。