常見例句nbsp; The train moved slowly south through flat, drab mainline scenery.火車穿過乾線兩側風景單調(diào)乏味的地區(qū),緩緩地曏南駛去。The train moved slowly south through flat, drab mainline scenery.火車穿過乾線兩側風景單調(diào)乏味的地區(qū),緩緩地曏南駛去。She pumped the stuff right into the mainline.她將麻醉劑直接注入手臂的主靜脈。 返回 mainlined