Nabla
纳布拉琴, 劈形算符(数学符号), 微分算符[子]
🗣️ 情景例句
but I have some of the pictures.
但我手头有一些照片。
Ouch, that hurts!
哎呦，好痛呀！
How many spiders are engaged in this work no our behalf?
有多少蜘蛛在为我们效力呢？