# 頭部、頸部、肩膀等上半身不能使力,反觀雙腳及腰部等下半身則要穩定——《拉背調整小姿勢,拯救痠麻痛》
×
Sign in
Email
Password
Forgot password
or
By clicking below, you agree to our
terms of service
.
Sign in via Facebook
Sign in via Twitter
Sign in via GitHub
Sign in via Dropbox
Sign in with Wallet
Wallet (
)
Connect another wallet
New to HackMD?
Sign up