单词let-the-side-down
On a day of high fashion, Princesses Beatrice and Eugenie certainly didn"t let the side down with their choice of designers.
在这个时尚的盛会上，碧翠丝公主和尤珍妮公主在设计师的选择上当然没有让大家失望。
You can always rely on Angela she"d never let the side down.
你尽可完全信赖安吉拉--她从不使同事感到失望。