We have to be very careful not to make any mistakes at the final stage of the experiment. Everything we have done will be in vain. (compound sentence)
【正确答案】：We have to be very careful not to make any mistakes at the final stage of the experiment, or everything we have done will be in vain.
We have to be very careful not to make any mistakes at the final
- 2024-08-23 06:21:17
- 英语写作基础(00597)