Some girls are studying in the classroom and the ____ girls are singing on the playground. (other/else)
多音字组词
和hé____ hè____
磨mó____ mò____
如图所示,把一根塑料绳一端扎紧,从另一端撕开许多细丝,用干燥的手向下捋几下,发现细丝张开了,细丝张开的原因是( )