carefulinobtaining...是什么语法结构,形容词后面为什么可以加介词?TheUniversityofTennessee’sWaltersLifeSciencesbuilding,isamodelanimalfacility,spotlesslyclean,carefulinobtainingpriorapprovalforexperimentsfr

Question

careful in obtaining ...是什么语法结构,形容词后面为什么可以加介词?
The University of Tennessee’s Walters Life Sciences building, is a model animal facility, spotlessly clean, careful in obtaining prior approval for experiments from an animal care committee.

Answer 1

这个句子中,是三个并列的表语,a model animal facility、spotlessly clean、careful in obtaining prior approval for experiments from an animal care committee,后两个因为避免重复,把is 省略了,这里的careful的用法,是 be careful (in) doing sth 意思是：小心做某事,不要出差错
翻译：
田纳西大学的沃尔特斯生命科学大楼,是一个动物模型设施,它一尘不染,在获得动物保健委员会事先批准动物实验方面显得非常小心.