contra-
comb form 构词成分 against 反对; 相反
contraflow. contra-, pref 前缀
1 (with vs and ns 用於动词和名词之前) opposite to; against 与...相反; 反对: contra-distinction
contra-indication * `contraflow.
2 (with ns 用於名词之前) (music 音) having a pitch an octave below 声音低八度的: contra-bassoon.