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
I'm inclined to think independently.
我喜欢独立思考问题。
I used to wake up early and get up at 7 o'clock.
我过去常早醒来并且在7点钟起床。
By working at tremendous speed, the men managed to get the dish on to dry land before the wave returned.
工人们动作迅速，终于赶在那股大浪返回之前把盘子拽到了岸上。