As an investment, or changing prices? Every big rise and fall is a time to test investors, whether they should be greedy or afraid, and whether there is a perfect investment plan and investment discipline! Everyone is discussing whether we can copy the bottom. Bottom reading is staring at the price, bearish how much, that they can predict the trend, itself is a kind of speculation. "Bargain hunting" is likely to fall sharply after buying, leading to a cut-off; It may also sell soon after the ...