没有指示灯显示是否运行，没有快进键和后退键，也就没有这类的噪音。

No light to show it is on; no fast forward button and the record button makes a loud noise.

youdao

网站访问者进入网站主页，面临两个选择：进入网站二级页面；或者点击后退键离开网站。

Your site visitors are faced with only two choices once they're on your homepage: Either they click past the homepage to your site's secondary pages, or they click the back button and leave your site.

youdao

即使受到监视，使用后退键或者其他明显破坏密码字符串显示和顺序的字符，都可以使偶然的攻击者无所适从。

Even if monitored, a casual attacker will be stymied by the presence of backspace and other characters that apparently alter the presence or order of characters in the password string.

youdao