1.走過時擦到The whale sometimes rubs himself upagainst small boats. 鯨有時會擦著小船的船身游過。
2.偶然碰上; 和...接觸You rubupagainst lots of interesting people in the showbiz profession. 在演藝界你和許多有趣的人接觸。You may rubupagainst a lot of famous people at the party. 在此宴會上你可以碰見許多名人。
