激烈的战斗已经持续了一整天。

Fierce ___fighting has continued all day.

功夫包含一种战斗形式，但它也是一种哲学。

Kung-fu involves a form of ___fighting, but it's also a philosophy.

将军下令撤退以避免进一步的战斗。

The general ordered a retreat to avoid further ___fighting.