>To me, 你要企起身 merely means "You need to stand up."
Why do you need to stand up? because you have been laying, crouching, sitting or been pushed down , by stand up to whatever in front, you showed that you have back bone, that's what "stand up for yourself " basically meant.
Anyway 你要爭氣 (you have to show your pride) works in all the examples above too,
Why do you need to stand up? because you have been laying, crouching, sitting or been pushed down , by stand up to whatever in front, you showed that you have back bone, that's what "stand up for yourself " basically meant.
Anyway 你要爭氣 (you have to show your pride) works in all the examples above too,