Dars
abbr. differential absorption remote sensing (laser) 差分吸收远程感知（激光）
🗣️ 情景例句
and how hard it is
他还说这件事很难
I'm sure you'll be pleased with this product.
我敢保证你会喜欢这种产品的。
Is Mr Brain in?
布雷恩先生在家吗？