日期:
来源:雅诚德英语网
I must point out that trials of new medicine are expensive and you can never guarantee success.
我必须指出新药的试验很昂贵,而且你永远不能保证成功。
I must point out that trials of new medicine are expensive and you can never guarantee success.
我必须指出新药的试验很昂贵,而且你永远不能保证成功。