abundant、plentiful与ample这些形容词均有“充分的、丰富的”之意。
abundant ：着重某物极为丰富有或大量的供应。
- There is an abundant supply of cheap labour.
廉价劳动力供应充足。 - We have abundant evidence to prove his guilt.
我们有充分的证据证明他有罪。
plentiful ：普通用词，指某物的数量多得称心如意，不过剩，但较少用于描写抽象之物。
- There is a plentiful supply of arms on the black market.
黑市上有大量武器出售。
ample ：指某物不仅满足了需要而且有余。
- 夕阳西下，天色很快暗下来，但是还有足够的光线。
The sun was setting fast, but there was still ample light. - 她丰满的乳房随着她的笑声颤动着。她对人总是和蔼可亲，从不疾言厉色。
Her ample bosom wobbled as she laughed. She was always affable and never brusque with people.
（拓展学习：小词详解 | ample）
