题目内容
3. 沙尘暴厚厚的沙尘经常使人呼吸困难,因此如果我们必须外出的话,最好戴上口罩。
The thick dust in the sandstorm often makes it____________________________ .So we'd better wear a mask if we have to go out.
3. difficult to breathe
练习册系列答案
相关题目
题目内容
3. 沙尘暴厚厚的沙尘经常使人呼吸困难,因此如果我们必须外出的话,最好戴上口罩。
The thick dust in the sandstorm often makes it____________________________ .So we'd better wear a mask if we have to go out.
3. difficult to breathe