1) Your must know both your opponent and yourself.
要知己知彼。
3) Learning of Others and Oneself
知彼知己
1.
On the Thought of "Learning of Others and Oneself" in Second Language Teaching;
第二语言教学中的“知彼知己”
5) Know the enemy and know yourself,and you can fight a hundred battles with no danger of defeat.
知己知彼,百战不殆
6) Know your enemy and know yourself
知己知彼百战百胜
补充资料：要知
1.书简套语。鉴察﹑察知。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条