The sappers belt out their song from the campaign in Poland.

兵在波兰的战役中引亢高歌。

For instance, the woodcutters from the Windsor Castle estate were sent to France as trench sappers.

例如，温莎城堡庄园的伐木法国担任战壕兵。

Ditto for the sugar in soda and many fruit juices. Above all, stay hydrated: Dehydration is a powerful energy sapper.

汽水和许多果汁中的糖也是如此。最重要的是，一定要补水。脱水是 让感到疲倦的主要原因。