1、要不是
If It Were Not For(要不是), 此释义来源于网络辞典。
2、若非
...er/on 胜过；比……强 if it were not for; were it not for; if it had not been for; had it not been for 若非；要不是 It is well (that)…幸好；万幸 ..
3、要没有
微 ... 稍微,稍稍 [slightly] 要没有,要不是 [but for;if it were not for] 古单位名 [wei,measure unit] ...
4、假设情况并非如此或要是没有
... [ formerly ] 在此以前。多用于追述往事之词 [ but for；if it were not for ] 假设情况并非如此或要是没有，引导假设条件句 [ in case；if ] ——用在偏正复句的偏句中，表示假设，相当于“如果”，正句有时用“ 就”跟它呼应 ...