the back of an envelope meaning in Chinese
信封的背面
Examples
- I make some rough calculation on the back of an envelope
我的信封背面大概算了一下。 - L make some rough calculation in the back of an envelope
我在信封的背面做了一个粗略的估算。 - I made some rough calculations in the back of an envelope
我在信封的背面做了一个粗略的估算。 - A detachable extension to the back of an envelope , having a perforated edge and special marketing information or an order form on it
信尾信封背面可拆掉的附加部分，其上有打孔的边缘和特定的市场信息或订购单