词组give sb. the finger美非正式 向某人伸出中指(表示轻蔑、恶意等)have a finger in every pie多管闲事keep one's fingers crossed (或cross one's fingers)(把食指与中指交叉)祈求好运point the (或a,one's )finger at轻蔑地指责put one's finger on确切地指出
• He could not put his finger on the problem.他不能确切地指出问题的所在。