Now, at this point, you might say, " Anna, wait a minute. Why does English use canaries in this expression? People love canaries and keep them as pets. They are happy, harmless little birds" .
现在,在这一点上,
可能会说," 安娜,等一下。为什么英语在这个表达中使用金丝雀?人们喜欢金丝雀,并把它们当宠物养。它们是欢快又无害的小鸟。"