Collections
n. 集合物件；收集（collection的复数）
🗣️ 情景例句
She has to work late tonight.
她今晚得工作得晚一些。
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。