necking phenomenon

例句：

1. 1. The necking phenomenon isa common cause of back pain in officeworkers.
   颈缩现象是办公室工作者常见的背痛原因。
2. 2. During the necking phenomenon, the blood vessels in the neck constrict and restrict blood flow.
   在颈缩现象中，颈部的血管收缩，限制血流。
3. 3. The necking phenomenon can becaused by various factors, including poor postureand improper lifting techniques.
   颈缩现象可能由多种因素引起，包括姿势不良和不当的提举技巧。