2. 其用戰也勝久則鈍兵挫銳攻城則力屈
3. 久暴師則國用不足

and sums spent on chariots and armor, will reach the total of a thousand ounces of silver per day. Such is the cost of raising an army of 100,000 men.

2. When you engage in actual fighting, if victory is long in coming, then men's weapons will grow dull and their ardor will be damped.

The Yü Lan omits 勝; but though 勝久 is certainly a bold phrase, it is more likely to be right than not. Both in this place and in § 4, the T’ung Tien and Yü Lan read 頓 (in the sense of “to injure”) instead of 鈍.

If you lay siege to a town, you will exhaust your strength.

3. Again, if the campaign is protracted, the resources of the State will not be equal to the strain.