a person or thing placed at the rear of something as a barrier or support 后围栏;后盾 ■(Baseball)a high fence or similar structure behind the home plate area (棒球)本垒后的挡球网 ■(Baseball)a catcher (棒球)接(球)手 ■(figurative)an emergency precaution or last resort (喻)支柱 the human operator has to act as the ultimate backstop when things go badly wrong. 情况严重时操作人员得发挥最后支柱的作用。
verb
[with obj.](Baseball)act as backstop for (棒球)为…当接(球)手 the man who backstopped the Edmonton Oilers. 为埃德蒙顿加油人队当接(球)手的那个人。 reinsurers might become reluctant to continue backstopping American insurers. 再保险公司或许会不愿继续做美国保险公司的后盾。