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

工兵在波兰的战役中引亢高歌。

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 让人感到疲倦的主要原因。

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工人被派往法国担任战壕工兵。