🗣️ 情景例句
Are the bathrooms on this train clean?
火车上的卫生间干净吗？
It's nothing.
小事情。
All this was comparatively slow until, with the coming of science, the tempo was suddenly raised.
所有这些发展都比较缓慢，而随着科学的到来，增长的速度才突然加快。