remain the most important
继续保持首要地位
the principles of quantum theory hold the field as the convincing account of the physics of the microworld.
量子论原理对微观世界物理现象的描述仍然是最令人信服的。
on campaign; (while) engaged in combat or manoeuvres
参赛；参战
troops in the field.
作战部队。
(archaic)continue a military campaign
(古)继续军事行动
be the leader in a race
（赛跑中）领先
(informal)indulge in a series of sexual relationships without committing oneself to anyone
(非正式)滥交情人
To begin or resume activity, as in military operations or in a sport.
出阵，开战：如在军事行动区一项运动中，令其开始或重新开始