http://altair.dbcls.jp/difff/dev/obokata_copypaste.html可惜有点不自量力要修改美爹的文法,结果改错了,残念!
美爹:
since the first phase 1 clinical
trials testing the safety of cells derived from hESCS
have 美女:
since the first phase 1 clinical
trial testing the safety of cells derived from hESCS
http://has 还有Section D搬到最后了。