underprep.低于；在 ... 下；在 ... 内；在 ... 控制下adv.在昏迷中；在 ... 下adj.下面的；从属的；少于的underratev.低估；看轻

1. These include not enough investment in agricultural technology.
   这些包括对农业技术的投资不足。
2. However, the expansion of our city the greatest bottleneck is lack of utility investment.
   但目前我国城市扩张的最大瓶颈，正是公用事业的投资不足。