英语翻译原题是One swallow can not make a summer Look before you lea

英语翻译原题是One swallow can not make a summer Look before you lea 英语翻译One swallow does not make a summer这句英文翻译中文是什么意思 one swallow doesn't make a summer one swallow can never [ ]a summer One swallow doesn’t make a summer,为什么是summer,而不是spring、、? One swallow___(do)not make a summer one swallow doesn't make a summer .能否解释一下为什么燕子前加one,夏天前加a. 谁能帮我翻译下：Can you possible make a simple jegging out of PU Lea one tree can not make a wood的中文意思 What can you swallow than can also swallow you? what can you see swallow that can also swallow you? What can you swallow that can also swallow you?