s. having or localized centrally at a focus
a. of or relating to a focus
a. 焦点的, 在焦点上的
[医] 病灶的, 灶的
1. The focal point of the meeting was to discuss the new project.
会议的重点是讨论新项目。
2. She used a magnifying glass to focus on the focal area of the text.
她用放大镜聚焦在文本的重点区域。
3. In photography, the focal length determines how zoomed in the image will be.
在摄影中，焦距决定了图像的缩放程度。