Total luminous flux
[电] 光源在各方向的总光线发射
🧩 词语组成解析
🗣️ 情景例句
He's coming over to talk about it.
他就是要来谈这个问题。
You had better leave right now.
现在你最好立刻回去。
We were, however, worried about our nearest neighbors, whose farm was low lying and who were newcomers to the district.
不过，我们很为我们的近邻担心。他们的农场地势低洼，而且他们又新来乍到。