单词	look all around
释义	look all around 往四下一看
随便看	standard speed standard speed of pto standard spelling standard spending assessment standard sperm standard sphere gap standard sphere-gap standard spheroid standard spicfication Standard Spoken Chinese standard spoken Chinese levels standard spoken Chinese level test Standard spoken Chinese popularization standard spool or pancake size standard sports pistol standard spots standard spray sprinkler system Standard spring laid back installation standard sprinkler head standards promotion and application grou standards promotion and application group standard spur gear standards quality standard square standard squib