reinforcement

Positive reinforcement, like giving a dog a treat for sitting, is very effective for training.

(Chinese) 正向强化，比如狗狗坐下时给它零食，对于训练非常有效。

The teacher found that verbal praise was a strong reinforcement for the students' hard work.

(Chinese) 老师发现口头表扬是对学生努力学习的一种强有力的强化。

The captain requested immediate reinforcements when he realized they were outnumbered.

(Chinese) 当意识到人数处于劣势时，上尉请求立即增援。

Police sent reinforcements to the stadium to handle the growing crowd of protesters.

(Chinese) 警方派出了援兵前往体育场，以应对不断增加的抗议人群。