Lcv
abbr. low calorific value 低发热量，低热值
🗣️ 情景例句
His excuse sounds unconvincing.
他说的理由好像不可难。
An old dog will learn no new tricks.
老家夥学不出新名堂。
The holes are only borings, less than a foot in diameter.
这些洞只不过是一些钻孔，直径不到1英尺。