B 开头单词

by reference 通過引用

by rectum [毉葯科學]直腸灌注

by reason that adv. 因爲

by reason of 由於；因爲

by reading the textbook 通過閲讀教科書 通過閲讀課本

by rail over frontier [經濟學]經鉄路運到邊界交貨

by rail 由鉄路，乘火車

by radio 用無線電

by public tender [法學]通過公開招標

by projection [交通運輸工程]依照平麪海圖的航法

by profession 在職業上；就職業來說

by product workshop [經濟學]副産品車間

by product sales [經濟學]副産品銷售

by product precipitation [物理學]副産品沉澱

by product power [能源科學技術]副産品電力

by product n.副産品；副作用

by priority 按優先級

by pressed for 缺少，缺乏

by preference 首先 最好

by practice 通過實踐