Stomacace
溃疡性口炎
🗣️ 情景例句
The advanced class starts at ten o'clock.
高级健身课十点钟开始。
In secondary school, children study mathmatic、phsicas and chemistry.
中学的小孩会读到数学、物理和化学。
from dust devils and squalls up to continent-size eddies that only satellites can see.
从小尘暴和暴风发展到只有卫星上可以看到的席卷整块大陆的旋涡。