Take a rest and reduce the movement of knee joint when symptoms of pain and swelling appear.

疼痛，肿胀明显时，应注意休息，减少膝关节活动。

youdao

No swelling of joint. Movement not restricted. No swelling of both legs. No venous hemangiectasis.

关节无肿胀，活动不受限，双下肢无浮肿、无静脉血管扩张。

youdao

Mobility system: no deformation of four limbs, no red swelling of joint. Free movement.

运动系统；四肢正畸形，关节无红肿，活动自如。

youdao

Arthritis produces pain, swelling and limited movement in one or more joints.

VOA: special.2010.05.19

Keeping this in mind while watching a murmuration brings a new logic to the swelling, rolling movement exhibited by the flock as flight changes ripple through it.

ENGADGET: Editorial: Tech is a flock of starlings