圣诞节前一周，孩子们到各家各户去唱圣诞颂歌。

The children went carolling during the week before Christmas.

圣诞节时，我们一般会唱颂歌。

We usually sing carols at Christmas.

我们在圣诞节常去唱颂歌（挨门挨户唱颂歌）。

We often go carolling (ie go from house to house, singing carols) at Christmas.

这首诗歌颂圣洁的爱。

The poem sings the praises of holy love.