British scientists have a 20-year study.汉语意思是什么

British scientists have a 20-year study.汉语意思是什么 Do you have your study 的汉语意思是什么 have a look的汉语意思是什么 have a harvest.的汉语意思是什么? British scientists have produced ___ they believe is the wor 1.British boarding schools have three terms a year,about 12 study tips汉语意思 Thave are four seasons in a year.的汉语意思是什么? have a chat 汉语是什么? have a good school year意思 have sth.done 汉语意思是什么? you still have me汉语意思是什么?