verb 下载 🔗分享 失焦,散焦。 To cause (a lens, or a beam of light or particles, etc.) to be out of focus. Examples : "The projector accidentally defocuses the image, making the presentation blurry. " 投影仪不小心让图像失焦了,导致演示变得模糊不清。 technology physics science 与AI对话词汇游戏阅读练习