Core tip: According to foreign media on December 7, as of the week ending December 5, the global oilseed market has been shaken and declined under multiple pressures, as the market doubts whether China's purchasing pace can achieve the target announced by the United States, while soybeans in the Southern Hemisphere are expected to have a bumper harvest, and the production of canola seeds in China and Australia is estimated to increase, further strengthening the expectation of sufficient global oilseed supply.