The enteric tracts of waterfowl such as ducks and geese are known to be the reservoirs for all known influenza A viruses.

已知鸭子和鹅等水禽的肠道是所有已知A型流感病毒的宿主。

Marguerite, on the contrary, behaved very well, and was not known to have any lover; which caused some surprise, for all knew of the circumstances which had led to her arrival in Paris.

玛格丽特相反，举止得体，没有情人。这引起了一些惊讶，因为所有人都知道导致她抵达巴黎的情况。