Columbium oxytrifluoride
[建] 三氟氧化鈮
?? 詞語組成解析
n. [化]鈮
??? 情景例句
It's OK, Susan.
太好了， Susan。
I went to sleep immediately and slept soundly all night.
我很快地入睡了并且整夜酣睡。
No, by air.
不，坐飛機去。