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
My address is 36 South 75th street, Apartment 10.
我的地址是南七十五街三十六号10号房。
Help the dog over the stile.
助人度过难关。
We'll have to cancel if we don't get that order soon.
如果不能很快拿到货，我们只有取消啦。