1、Thefour-leafcloverisanuncommonvariationofthecommonthree-leafclover.Accordingtosuperstition,suchleavesbringgoodlucktotheirfinders,especiallyiffoundaccidentally.
2、因为在自然界中，四叶草通常呈现出深绿色的颜色，这是因为叶子中的叶绿素含量较高，赋予了它独特的绿色。
3、所以，绿色是四叶草最常见的颜色。
4、Itisdebatedwhetherthefourthleafletiscausedgeneticallyorenvironmentally.Itsraritysuggestsapossiblerecessivegeneearingatalowfrequency.Alternatively,four-leafcloverscouldbecausedbysomaticmutationoradevelopmentalerrorofenvironmentalcauses.Theycouldalsobecausedbytheinteractionofseveralgenesthathentosegregateintheindividualplant.Itispossibleallfourexplanationscouldlytoindividualcases.
5、最为有趣也最特别的是，在十万株苜蓿草中，
6、你可能只会发现一株是‘四叶草’，因为机会率大约是十万分之一。
7、Accordingtolegend,eachleafletrepresentssomething:thefirstisforhope,thesecondisforfaith,thethirdisforlove,andthefourthisforluck.Legendalsoholdsthatifaladyhangsa4leafcloveronherdoor,thenextmantocomeinwillbecomeherhusband.
8、Cloverscanhavemorethanfourleaflets.Themostleafletseverrecordediseighteen.Ithasbeenestimatedthatthereareroximately10,000three-leafcloversforeveryfour-leafclover.
9、因此‘四叶草’是国际公认为幸运的象征。
10、fourleafclover是绿色的。
11、四叶草
