bull's-eye 或 bull's eye

bulls-eye的音标和读音：
DJ音标发音： [ˈbulzˌai]
KK音标发音： [ˈbʊlzˌaɪ]

bulls-eye的词性：
n.（名词）

1. The small central circle on a target.
靶心：靶子上中间最小的圆环

2. A shot that hits this circle.
打中靶心的一击

3. A direct hit:
直接打击：

scored a bull's-eye on the window with a snowball.
用雪球直接打在窗户上

4. The precise accomplishment of a goal or purpose:
取得成功：在预定目标下的取得的实际成就：

“With his overflowing style, [he] almost always hits the bull's-eye of universality” (William Zimmer)
“以他求多的个性，［他］ 几乎总是能得到普遍认可” (威廉·齐默尔)

5. A thick, circular piece of glass set, as in a roof or ship's deck, to admit light.
圆顶窗：屋顶或船舷上为了透光的厚的圆玻璃窗

6. A circular opening or window.
圆孔或圆窗

7. A planoconvex lens used to concentrate light.
凸透镜：用来聚光的凸镜

8. A lantern or lamp having such a lens.
有这种镜的灯笼或灯

9. A piece of round, hard candy.
牛眼糖：一种圆的，很硬的糖