flat slate造句

例句与造句

1. Many pieces of flat slate or rock should also be included for the female to lay her eggs upon.
2. Each type of roughly sorted coal would next pass over a " slate-picker screen " ( sometimes called a " mud screen " ), with the generally round coal falling through the screen and the flat slate passing over the screen to fall down a chute to the culm pile.
3. It's difficult to find flat slate in a sentence. 用flat slate造句挺难的