n (1)(跑道的)一圈(one round of a race course)[C]：The runners have completed five～s， with three still to run. 运动员已跑完了五圈，还要跑三圈。After the first～，John was the leader. 第一圈之后，约翰领先。They are on the last～. 他们在跑最后一圈。do a～of honour 获胜后绕场一周以示敬意;

(2)一段路程(section of a journey)[C]：We are on the last～of our long journey. 我们这次长途旅行已到最后阶段。

v (1)领先(一圈或数圈)(be one or more laps ahead)[T+n]：Before the end of the race Bob had～ped Jimmy. 比赛快结束时鲍勃已领先吉米一圈。

(2)用……包住(wrap round sth)[T+n+prep(round/in)]：～a blanket round the child/the child in a blanket 用毯子裹住孩子;

(3)(使)重叠((cause to) lie partly upon)[I，T+n]：The dog's ears are so long that they～over. 这只狗的耳朵很长，都已垂下来了。One board～s another. 木板一块叠压另一块。～shingles on a roof 将木瓦叠盖在房顶上