we must not give up 強調(diào)不放棄（表否定的）
we must not stop 強調(diào)不停下（表否定的）
we must keep stepping forward 強調(diào)前行,或者向同一個方向努力
we must fight to the end 強調(diào)斗爭到底
we must stick to the end 強調(diào)“堅持到底”側(cè)重“堅持”
we must reach the end 強調(diào)“堅持到底”側(cè)重“到底”
we must proceed （with the mission） 強調(diào)遇到困難后繼續(xù)完成任務(wù)
we must be with each other/we must stick together 強調(diào)2人不分開,前者可形容情侶
當(dāng)然樓主你寫的更是完全正確的
或者：keep going,we must!星球大戰(zhàn)里yoda大師喜歡這樣反過來說.