Mandy started after him, signalling to Jesse to follow.
曼迪开始追赶他，示意杰西跟上。
《柯林斯英汉双解大词典》
2
He seemed to be signalling important shifts in U.S. government policy.
他似乎在表示美国政府的政策将会有些重大变化。
《柯林斯英汉双解大词典》
3
Lorry drivers say they have almost abandoned the practice of signalling cars to overtake when the road is clear, because many of the cars took too long to pass.