O grade
n. 普通等级考试（苏格兰旧时的单科考试，低于高级考试，通常在 16 岁时参加。1988 年由标准等级考试取代）
🧩 词语组成解析
🗣️ 情景例句
Do you have any special hobbies?
你有什么特别的爱好吗？
All things are difficult before they are easy.
凡事必先难后易。
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。