grand slam
definitions
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a victory in all four major tournaments in tennis, or a four-run home run in baseballzh: 网球四大满贯赛事全部获胜,或棒球中的四支本垒打
examples
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Serena Williams won her first grand slam at the Australian Open.
塞雷娜·威廉姆斯在澳网赢得了她的第一个大满贯。