Semicentennial
a. 五十年一度的, 持续半个世纪的\\nn. 五十周年, 五十周年纪念
✅ 同义词
🗣️ 情景例句
You are always straying from the subject.
你说话总爱跑题。
Fine feathers make fine birds.
人要衣装，佛要金装。
So he couldn't buy himself lots of good things. But he had lots of friends instead.
所以他不能给自己买很多好东西。可是他却有许多朋友。