n.钍射气
He uncoiled the hose and gave them a thorough drenching.
他把软管铺展开来,把它们彻底冲洗了一下。
The degree provides a thorough grounding in both mathematics and statistics.
该学位课程将为数学和统计学打下扎实的基础。
A thorough brushing helps to freshen up your mouth.
彻底刷牙有助于口气清新。