比如，银行通常会提醒大家在取款时遮住密码，以防密码被盗:Always cover your PIN at an ATM. You never know who might be looking over your shoulder.
主板的I/O接口一般有USB 2.0接口、USB 3.2 Gen 1接口、USB 3.2 Gen 2 Type-A接口、USB 3.2 Gen 2 Type-C接口、USB BIOS FlashBack按钮、网络接口、2，.5G网络接口、Wi-Fi 6天线接口、音频输出接口、光纤
举个例子:You can open several accounts in one book and set a sole pin number for your deposit book.好啦，今天的小知识点，你学会了嘛?
