| B1 | signal | noun | C1 | signal | verb |
| C | Der Verkehr: | Der Zug: | Signal | signal | tín hiệu | 信号 |
他们正在等待开始的信号。They were watching for the signal to start .Sie warteten auf das Startsignal.Họ đang chờ tín hiệu bắt đầu. | 用眼睛发出信号。Signal with one's eye .Mit dem Auge signalisieren.Ra hiệu bằng mắt. |