to improve morale的用法和樣例：
例句
- But the South had needed the cheering news from Chickamauga to strengthen its morale through the winter.
但是在整個(gè)冬天南方都只能用奇卡莫加勝利的消息來(lái)提高士氣。 - Our way of building morale depends on class consciousness and hardly could be used except in a revolutionary war.
我們提高士氣的方法是靠階級覺(jué)悟，這種方法只在革命戰爭中才可以運用。
