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.那summer前不加冠词可以吗？

one swallow doesn't make a summer是一个谚语。 One swallow doesn’t make a summer,为什么是summer,而不是spring、、? 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.那summer前不加冠词可以吗？ swallow one's pride Swallow Swallow one swallow does not make a summer Which of the following proverbs is closest in meaning to the saying,Birds of a feather,flocktogether?A)One swallow doesn't make a summer.B)A bird in the hand is worth two in the bush.C)A man is known by the company he keeps.D)Fine feathers make fin :When only one doesn't move,more is needed Mary doesn't kown which one she should buy. why doesn't tha' put tha' one shoes He doesn't +want还是wantsHe wants a large one Say goodbye to the one who doesn't love me. 英语翻译No one doesn't have an opinion about something. but you just lost one who doesn't love swallow my pride 意思英文歌曲中常有swallow one`s pride之类的词语“swallow our pride”“swallow my pride”吞掉骄傲？伤自尊？ one swallow does not make a summer中文翻译? This shirt doesn't fit me,please give me_This shirt doesn't fit me,please give me_(有一个)one.