qīng yíng
graceful
lithe
light and graceful
lighthearted
relaxed
Lǜ qí bīng
same as 綠營|绿营[lǜ yíng], Green standard army, standing infantry during Qing dynasty, originally formed from Ming and other Chinese army units
qǐng yīng
to volunteer for military service
to offer oneself for an assignment