Flavescence
[植]变黄, 黄白病
🗣️ 情景例句
The advanced class starts at ten o'clock.
高级健身课十点钟开始。
Should I take the bus?
要乘公共汽车吗？
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。