gainsaying怎么读？

v.否认，反驳( gainsay的现在分词 )...

There is no gainsaying his honesty.他的诚实是不可否认的.There is no gainsaying the fact that they have been responsible for a truly great building.不容否认的事实是，他们一手建起了一座真正伟大的建筑。There was no gainsaying the astronomer's knowledge a...