基本解釋主線;主靜脈同根派生 mainlines相關詞英漢例句nbsp; The train moved slowly south through flat, drab mainline scenery.火車穿過干線兩側風景單調乏味的地區(qū),緩緩地向南駛去。The train moved slowly south through flat, drab mainline scenery.火車穿過干線兩側風景單調乏味的地區(qū),緩緩地向南駛去。She pumped the stuff right into the mainline.她將麻醉劑直接注入手臂的主靜脈。mainlines更多例句