elapse
verb /ɪˈlæps/
  /ɪˈlæps/
 [intransitive] not usually used in the progressive tenses动词形式
| present simple I / you / we / they elapse |  /ɪˈlæps/  /ɪˈlæps/ | 
| he / she / it elapses |  /ɪˈlæpsɪz/  /ɪˈlæpsɪz/ | 
| past simple elapsed |  /ɪˈlæpst/  /ɪˈlæpst/ | 
| past participle elapsed |  /ɪˈlæpst/  /ɪˈlæpst/ | 
| -ing form elapsing |  /ɪˈlæpsɪŋ/  /ɪˈlæpsɪŋ/ | 
- if a period of time elapses, it passes(时间)消逝,流逝 - Many years elapsed before they met again.过了许多年他们才再次相见。 
 Collocations DictionaryElapse is used with these nouns as the subject:- decade
- fortnight
- minute
- …
 词源late 16th cent. (in the sense ‘slip away’): from Latin elaps- ‘slipped away’, from the verb elabi, from e- (variant of ex-) ‘out, away’ + labi ‘to glide, slip’.
- Many years elapsed before they met again.