(differentiation 的复数) n. 区别, 分化, 变异\\n[医] 鉴别, 区别, 分化[作用], 微分法
🗣️ 情景例句
is that you have us.
就是有我们帮助。
Yes, a little.
是,会一点。
Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life.