二寸照片的尺寸是多少？

　　无论是申请护照、学生证、员工证还是其他任何需要个人照片的场合，我们经常会被要求提供二寸照片。那么二寸照片的尺寸到底是多少呢？下面我们就来详细介绍一下。

　　在国内，二寸照片的尺寸标准是3.5厘米×4.5厘米。这个尺寸相对较小，适合放在各种证件上，如护照、驾驶证、身份证等。如果跟大家熟悉的一寸照片进行比较，二寸照片的宽度和高度更大一些。另外，二寸照片的长宽比为7：9，即宽度是高度的7/9。

In China, the standard size for a two-inch photo is 3.5 cm × 4.5 cm. This size is relatively small and suitable for various identification documents such as passports, driver's licenses, and identity cards. Compared to the more commonly known one-inch photo, the two-inch photo is slightly wider and taller. Additionally, the aspect ratio of a two-inch photo is 7:9, meaning that the width is 7/9 of the height.

　　在其他国家或地区，二寸照片的尺寸可能会有所不同。例如，在美国，二寸照片的尺寸是2英寸×2英寸，大约为5.08厘米×5.08厘米。由于不同国家和地区对照片尺寸的要求有所差异，因此在准备照片时应仔细查看相关要求，以确保照片尺寸符合标准。

In other countries or regions, the size of a two-inch photo may vary. For example, in the United States, the size of a two-inch photo is 2 inches × 2 inches, approximately 5.08 cm × 5.08 cm. Since different countries and regions have different requirements for photo sizes, it is important to carefully review the specific requirements when preparing photos to ensure compliance with the standards.

　　为了拍摄一张符合二寸照片尺寸的照片，我们需要注意以下几个方面。首先，选择一个相机或手机拍摄，确保照片的清晰度和质量。其次，选择一个合适的背景，普遍选择纯白色或浅灰色的背景。第三，保持面部表情自然，并且正视镜头。最后，将照片剪裁到正确的尺寸。

To capture a photo that meets the size requirements for a two-inch photo, we need to pay attention to several aspects. First, use a camera or smartphone that ensures clear and high-quality photos. Second, select an appropriate background, commonly a pure white or light gray background. Third, maintain a natural facial expression and look directly into the camera. Lastly, crop the photo to the correct size.

　　总而言之，二寸照片的尺寸在中国通常为3.5厘米×4.5厘米，而在其他国家或地区可能有所不同。无论是在国内还是国际上，遵守相应的照片尺寸标准非常重要，以确保我们的照片能够顺利通过审核，并被应用于各种证件和场合中。

In summary, the size of a two-inch photo in China is typically 3.5 cm × 4.5 cm, while it may vary in other countries or regions. Whether domestically or internationally, it is crucial to adhere to the respective photo size standards to ensure that our photos can pass the required review and be used for various identification purposes and occasions.