中翻英 机器免入计算器样品已经收,我将交给李先生带回新加坡转交给你,李先生计划本周星期四或是星期五返回新加坡.

We have received "computer / calculator" samples. I will give them to Mr. Lee. He will bring them back to Singapore with him on this Thursday or Friday. Upon his arrival, he will give them to you.
We have received computer/calculator samples. Mr. Lee will bring them back to Singapore for you on this coming Thursday or Friday.

the computer samples have been received and will be delivered to you by Mr. LI, who will go back to singapore this Thursday or Friday

Calculator samples have been received,I will deliver them to Mr.Li to carry to Singapore,and then hand over to you,Mr.Li plans to return Singapore this Thursday or Friday.
Calculator是最地道的计算器英语翻译