How many English classes do you have in a week?
这里的do怎么理解?
do在这里是v.aux.(助动词) Used with the infinitive without to in questions, negative statements, and inverted phrases: 用于疑问句、否定句和倒装句:跟不带to 的不定式连用,见于问句、否句、倒装句中: Do you understand? 你懂吗?
问:外商问我说:"how many units do you have in the field?"是什么意思?
答:你们公司有多少款产品?在问你们产品的具体情况,可以给外商介绍一下你们产品的种类.详情>>
答:详情>>