穷究

nghiên cứu kỹ; đi sâu nghiên cứu; nghiên cùng

make an exhaustive enquiry into sth; probe deeply into sth 穷究 其理/其因 probe deeply into sth to find the cause 穷究 其根 probe the roots of sth

认识每个字，再去看它们组成的词 →