To strengthen by adding material, props, or pieces.

补充；增补；增强。

To strengthen (a military force) by adding troops.

【军】增援；增兵。

To increase; augment.

增加；增大。

To make stronger or more compelling.

加强；使更有力。

To increase the probability (of a response to a stimulus) by giving a reward or ending a painful stimulus.

【心理】鼓励或加强对刺激之反应。