《How can we become good learners?》PPT课件15
《How can we become good learners?》PPT课件15第4页

(3) 意为“依靠”、“用” 、“凭借”、“通过”、“乘坐” 等。表示方法、手段。如:我乘公交车去上学。 I go to school by bus. (4) 意为“被”、“由”等。用于被动句中,表示行为主体。如: 许多人讲英语。 English is spoken by many people.