21.to be out of your element处于不相宜的环境;不得其所
The fish have been taken out of their element and brought inland to be sold.这些鱼被带离了适宜生存的环境, 运往内陆销售。
Maybe it's because they're so out of their element that they feel the need to talk.可能是因为感到非常不自在, 他们觉得有必要说说话。