Let us construct, with the origin(原点) as center, a semicircle(半圆) of radius R.
举一反三
- ,L是以原点为中心，R为半径的右半圆
- it is sunny today,__ go out togethe A: let us B: let's
- Let us ____________for a moment that the plan succeeds.
- What does the author mean by saying “Let us become like stones, plants, and trees. Let us be animals, think and feel like animals”?
- The center of conventional automobiles in the US is the city of Detroit.