His stomachache made him feel wretched (i.e. ill) all day.
他胃疼得整天十分难受（即生病）。
2
These included an awareness of one's own agency (i.e. one's power to act), and an awareness of one's distinctiveness from other people.
这些包括意识到自己的能动性（即一个人的行动能力），以及意识到自己与他人的不同。
3
A realistic look at the crimes reveals that the offender is likely to be an employee of the firm against which the crime has been committed, i.e., an "insider".