站著說話不腰疼

1. • it's all very well to talk, but getting things done is another matter (fig.) to be an armchair expert to blabber on

     saying

Character by character

• 站(zhàn)station
• 著(zhe)aspect particle indicating action in progress or ongoing state
• 說(shuō)speak
• 話(huà)dialect
• 不(bù)no
• 腰(yāo)the waist and lower back
• 疼(téng)hurts