拷问的，痛苦的；使痛苦，使焦虑，绞尽脑汁( rack的现在分词 )；

1. A racking headache made him unable to concentrate on his study.
    折磨人的头痛使他不能全神贯注地学习。

1. 分离(皮渣、酒脚)：Blending:调配 | Racking:分离(皮渣、酒脚) | Decanting:倒灌(瓶)

2.

2. 剧烈痛：钝痛 dull ; obtuse ; | 剧烈痛 sharp ; excruciating ; tormenting ; torturing ; racking ; agonizingly severe | 不断阵痛 gnawing ; griping

3. 倾斜,变形,船体扭转变形：quotation 报价单 | racking 倾斜,变形,船体扭转变形 | radiography X射线探伤

4. 架;震动：racking platform 二层台 | racking 架;震动 | racon 雷达信标

1. causing great physical or mental suffering

    e.g. a wrenching pain

    Synonym: wrenching