Colibacterin
大肠菌苗
🗣️ 情景例句
I've been busy all day.
我今天一整天都非常忙。
When the storm broke, I was doing the ironing.
当火起来的时候，我在烫衣服。
That is perhaps why sculpture has been described as the most difficult of all arts;
雕塑被说成是所有艺术中最难的艺术，可能就是这个道理。