發送短信 : Customer's short positions and supplier's investment decisions

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 | |_| ||  | ||__   | '--' ||  / //\ \\ | |/\| || 
 | .  //   | ||__   | .--. || |  ___  |||  /\  || 
 |_|\_\\   |_____|| |_|| |_|| |_||  |_|||_// \_|| 
 `-` --`   `-----`  `-`  `-`  `-`   `-` `-`   `-`