小丘；小山；山包
mounds — plural of mound
先理解核心含义，再看它在真实句子里的用法。
小丘；小山；山包
a small naturally formed hill or hillock
She placed a small mound of mashed potatoes on each plate.
她在每个盘子里放了一小堆土豆泥。
指天然形成的小丘
人工堆起的土丘或高地；防御用的堤坝
An artificial hill or elevation of earth; a raised bank; an embankment thrown up for defense
(棒球)投手站立的微微隆起的地方
(baseball) the slight elevation on which the pitcher stands
看似人工堆起的自然隆起；规则且孤立的小山或丘陵
A natural elevation appearing as if thrown up artificially; a regular and isolated hill, hillock, or knoll.
小自然山丘
a small natural hill
Ants had built a mound beside the garden path.
蚂蚁在花园小径旁筑起了一座土堆。
The children made a huge mound of leaves and jumped into it.
孩子们堆了一大堆树叶，然后跳了进去。