knackering
adjective /ˈnækərɪŋ/
  /ˈnækərɪŋ/
[not usually before noun] (British English, informal)- making you very tired使人筋疲力尽的 - I don't do aerobics any more—it's too knackering.我再不做有氧健身操了,太累人了。 
 
- I don't do aerobics any more—it's too knackering.
| 词汇 | knackering | 
| 释义 | knackeringadjective /ˈnækərɪŋ/  /ˈnækərɪŋ/[not usually before noun] (British English, informal) 
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