Fit. "Investment refers to the process that a country, an enterprise or an individual signs an agreement with the other party for the specific purpose of promoting social development, realizing mutual benefit and transferring funds. Bank of Communications regularly pays double interest balance, which is a compound fund with moderate security risk and is suitable for investments with less principal. Investment is the economic behavior of a specific economic entity to invest a sufficient amount of money or physical currency equivalents in a certain field in order to obtain income or capital appreciation in the foreseeable future.