Microdelta
微三角洲
🗣️ 情景例句
Does this car have good fuel economy?
这种车省油吗？
I wonder if it is possible to arrange shopping for us.
我想能否在我们访问结束时为我们安排一点时间购物。
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-