Rdb
[计] 关系数据库
🗣️ 情景例句
I suppose so.
我认为是这样。
We've only sold our product at trade fairs, not in an on-going sales campaign.
我们的产品只在商展时展售，而没有办促销活动。
I have some difficulty in pronouncing some of the words in English.
我有些英语单词发音不好。