one swallow does not a spring make
Relating to an endogenous retrovirus
Something with an oblong shape. / A rectangle with length and width that are different. / An ellipse with minor and major axes that are different.
(organic chemistry) The univalent radical derived from tryptophan
Alternative form of one swallow does not a summer make
彼女は、彼が一度の成功ですべてだと主張したとき、一羽のツバメで春は来ないと注意した。
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