Kapnometer
烟密度计
🗣️ 情景例句
Will you be my fiancée?
你想成为我的未婚妻吗？
Her face tells her joy.
她的脸显示了她的喜悦。
he stooped to talk to a workman.After they had gone on,
途中，停下来与一个工人交谈，接着他们继续往前走去。