英语语法分析

Crooked well bores may undulate with doglegs, spiraling, and washouts. In a word, it is tortuous.

弯曲井眼的轨迹可能会由于狗腿角、螺旋线、井眼冲洗等发生起伏，总而言之，井眼轨迹是弯曲的。