button one’s lips
1. 解词释义
Button one’s lips的字面意思就是“把嘴唇锁紧来”，比喻为“保持沉默，闭口不言”的意思。
2. 拓展例句
e.g. Sometimes he would sit silent and abstracted, buttoning his lips.
有些时候他神思不定地坐在那里，一言不发，任何人都不理。
e.g. Buttoning his lips, he hurried away, with his hoary head bending low.
他一言不发，低着白发苍苍的头, 匆匆地走了。
e.g. Now and then Lord Henry looked across at him, wondering at abstracted manner and his buttering his lips.
亨利勋爵不时地隔着桌子瞧着他，对他一言不发和魂不守舍的态度感到奇怪。