failing
/ˈfeɪlɪŋ; `felɪŋ/ n
weakness or fault (of character); shortcoming （性格中的）弱点, 缺陷, 短处
We all have our little failings. 我们都有小的缺点.
failing / ˈfeɪlɪŋ; `felɪŋ/ prep
1 if (sth) does not happen; without (sth) 如果（某事）不发生; 如果没有（某事物）
failing this, ie if this does not happen 倘若此事不发生
failing an answer, ie if no answer is received 若无答覆.
2 if (sb) is not available 如果（某人）不在; 如果没有（某人）
Failing Smith, try Jones. 要是史密斯不在, 就找琼斯.