He took careful aim at the target. [=he aimed carefully at the target]他小心翼翼地瞄准了目标。

The runner took aim at setting a record. [=the runner's goal was to set a record]这名赛跑运动员的目标是创造纪录。

Investigators are taking aim at [=targeting] health-care fraud. [=investigators are intending to punish/stop health-care fraud]调查人员致力于惩罚/杜绝医疗保健欺诈行为。