答礼的英文：
to return a solute; to acknowledge the salute

参考例句：

They acknowledged the enthusiastic plaudits of the crowd.
他们对人群中爆发的热烈喝采答礼。

Take the salute, acknowledge with a salute (the salutes of soldiers marching past)
(在前进通过的士兵敬礼时)行答礼,还礼.

We saw an answering pennant flown at the dip.
我们看见对方升起了一面答礼的旗帜。

Then the cannons of the anchored warships thundered a salute to which the Vasa fired in reply.
接着,停泊在港口的兵舰向"瓦萨"号鸣炮致敬,"瓦萨"号鸣炮答礼。

return是什么意思：
v. 带回，放回，恢复，回到
n. 回来，归还，回报
adj. （票）双程的，往返的；（旅途）返回的，返程的

The return of a prodigal
回头浪子

Return ReceiptsSettings for requesting or returning receipts
返回收据有关收据的请求或返回有关的设置

To return disappointedly; defeated.
铩羽而归

solute是什么意思：
n. 溶解物,溶质

It is an easy solution, but not the correct solution.
这是一个容易的方法，但不是正确的方法。

Relating to or designating a solution that contains one mole of solute per liter of solution.
摩尔的有关或指定一种溶液，其每升溶液包含有一摩尔溶质。

In some cases the solute can associate in solution.
在某些情况下，溶液中的溶质可以互相结合。

acknowledge是什么意思：
v. 承认；供认；确认；为…感谢；接受；承认

He acknowledged the greeting with a nod.
他点了点头，回应了对他的问候。

This report is an acknowledgment of the size of the problem.
这个报告承认了问题的严重性。

They acknowledged the enthusiastic plaudits of the crowd.
他们对人群中爆发的热烈喝采答礼。