🧩 词语组成解析
🗣️ 情景例句
Did she mention when she would arrive?
她说过什么时候到吗？
Wisdom is a good purchase though we pay dear for it .
为了求知识，代价虽高也值得。
In his twenties Frank used to make spare parts for aeroplanes.
20多岁的时候，弗兰克曾生产飞机零配件。