Many areas of cropland in Bangladesh are becoming unfit for farming. The land is becoming salty. It is a big problem for the small country. More than 155 million people live in Bangladesh. Growing crops is the most common way Bangladeshis support themselves.______________________________在孟加拉国有很多农田都不再适宜耕作.土地都盐碱化.这对小国家来说是大问题.孟加拉国有超过1.55亿人口.作物种植是孟加拉国自给自足的最常见方式.__________________________