Nabla
纳布拉琴, 劈形算符(数学符号), 微分算符[子]
🗣️ 情景例句
She looks just like Grandma at that age.
她和她奶奶年轻时候长得一模一样。
The gorilla is beating his chest.
那只大猩猩在捶着胸膛。
The truth is quite other than what you think.
事实真相和你所想的完全不同。