Luminous flux
[计] 光通量\\n[化] 光通量
🧩 词语组成解析
🗣️ 情景例句
It was so kind of them.
他们太客气了。
After graduation, Mr. Jones immediately became a member of the United Nations Relief and Rehabilitation Administration.
毕业后琼斯先生就加入了联合国救济善后总署。
Thank you, MR.Jackson.
谢谢，杰在逊先生。