lack: [12] The word lack is not known to have existed in Old English, although it is by no means impossible that it did. If it was a borrowing, a possible source would have been Middle Dutch lak ‘deficiency, fault’. This has been traced back to a prehistoric Germanic *lak-, a variant of which produced English leak.=> leak
例句
1. Lack of exercise can lead to feelings of depression and exhaustion. 缺乏锻炼会导致抑郁和疲劳。
2. Despite his lack of experience, he got the job. 他虽然经验不足,但还是获得了这份工作。
3. There's a lack of fussiness about the way he works. 他工作时不会过分注重细节。
4. She wrinkled her nose, piqued by his total lack of enthusiasm. 她皱皱鼻子,为他毫无热情而感到不快。
5. There's always a lack of consistency in matters of foreign policy. 外交政策总是缺乏连贯性。