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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. 運動員已跑完了五圈，還要跑三圈。After the first～，John was the leader. 第一圈之后，約翰領(lǐng)先。They are on the last～. 他們在跑最后一圈。do a～of honour 獲勝后繞場一周以示敬意;

(2)一段路程(section of a journey)[C]：We are on the last～of our long journey. 我們這次長途旅行已到最后階段。

v (1)領(lǐng)先(一圈或數(shù)圈)(be one or more laps ahead)[T+n]：Before the end of the race Bob had～ped Jimmy. 比賽快結(jié)束時鮑勃已領(lǐng)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)重疊((cause to) lie partly upon)[I，T+n]：The dog's ears are so long that they～over. 這只狗的耳朵很長，都已垂下來了。One board～s another. 木板一塊疊壓另一塊。～shingles on a roof 將木瓦疊蓋在房頂上