They hired 20 doctors in an attempt to reduce waiting times for operations 他们聘请了20名医生,试图缩短病人等待手术的时间。
2.
Timing for operation varies from person to person and depends on how the cataract has affected the daily life of the patient 白内障切除手术当白内障令视力减退,影响生活及工作时,便要动手术切除。