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
Scene: Tom and his wife have invited Carl and David for dinner.
场景：汤姆和他夫人邀请卡尔和大卫吃晚饭。
She won't be in until 10:45, so the earliest would be 11:00.
她要到10:45才来，所以最早也得到11点才能看。
Nearly a week passed before the girl was able to explain what had happened to her.
几乎过了一个星期，那姑娘才能讲述自己的遭遇。