vapor
US /ˈveɪ.pɚ/
UK /ˈveɪ.pɚ/

1.
2.
空談, 虛無
a feeling or mood that is insubstantial or fleeting
:
•
His promises often turn out to be mere vapor.
他的承諾常常只是空談。
•
The excitement of the moment quickly turned to vapor.
那一刻的興奮很快化為烏有。
1.
汽化, 蒸發
to convert into vapor
:
•
The intense heat caused the liquid to vaporize rapidly.
強烈的熱量導致液體迅速蒸發。
•
The scientist used a special device to vaporize the sample.
科學家使用特殊設備將樣品汽化。