Cdh
abbr. constant differential height 常微分顶点
🗣️ 情景例句
so that we can toast Lillian--and me.
以便我们能敬Lillian一杯 ，也敬我。
They lived in perfect harmony.
他们相处得十分和睦。
The farmers are all busy, getting ready for the next year.
农民们则全都忙着为下一年作准备。