He gave a signal to his driver to carry on. 他示意司機繼續開車。

At the prearranged signal, we all jumped up and shouted ‘Surprise!' 在約定的暗號發出時，我們都跳了出來，大叫一聲“驚喜！”

They waved a flag as a signal of distress. 他們搖旗表示求救。

She knew she was sending him mixed signals. 她明白自己發給他的信息自相矛盾。

The election was a signal for the party to rethink its strategies. 這次選舉對該黨來說是一個需要重新考慮其策略的信號。

In terms of their personal relationships, teachers have to be very careful not to send students the wrong signals. 在個人關系方面，教師要特别謹慎，以免給學生發出錯誤的信號。

When she told him she was leaving, Bill wasn't surprised – he had read the signals. 她告訴比爾要走時，比爾並不感到吃驚，他早就明白她的意思。

The copper wire carries the electrical signals. 銅絲可以傳遞電訊信號。

He signalled frantically across the room to his wife. 他沖着屋子對面的妻子猛打手勢。

The driver signalled her to cross the road. 司機示意讓她過馬路。

He flashed his torch to signal that he was ready. 他閃了閃手電筒，示意他準備好了。

The new tax signalled that the government was serious about the environment. 這項新稅收表明政府對環境問題是認真的。

Both parties have signalled their determination to win. 兩黨都已表示出要赢的決心。