1.
Cat B: 8 laps, each lap 3.8 km, total 30.4 km. The 4th lap is a sprint lap.
组：8圈，每圈3.8公里，总共30.4公里，第四圈为冲刺圈。
2.
An Attack on the Last Three Passes of 4-Pass HAVAL-128;
四圈HAVAL-128后三圈的碰撞攻击
3.
She ran four circuits of the track.
她在跑道上跑了四圈.
4.
The Study of Largest and Smallest Order about Two Indexes on Some Kinds of Three-cycle and Four-cycle Graphs
关于某类三圈、四圈图的两种指标的最值的研究
5.
She knew that her mother was good for at least four games of mahjong.
她知道她的母亲至少还要打四圈麻将。
6.
quarter-wave choke
四分之一波长扼流圈
7.
Thirteen, fourteen, maids in a ring.
十三，十四，围成圈的女孩。
8.
the number of each big circle is sixty-four.
读图填数 (从11?21)，每个大圈有四个小圈，和为64。
9.
There was a fence around the yard.
在院子的四周围有一圈篱笆。
10.
Marine pipe flanges-Soft gasket
GB/T2502-1989船用法兰软垫圈(四进位)
11.
"Dingbat Negative Circled Sans-Serif Digit Four
"丁贝符反白随以圆圈无衬线数字四
12.
To form a wreath or wreathlike shape around.
成圈状四周形成环或环状的外形
13.
The edge of a graduated arc or circle used in an instrument to measure angles.
（四分仪等的）分度弧或圆圈，用于量角度
14.
"Four anchors with Bolts and washers, per enclosure"
每个外壳配置四个锚栓和垫圈
15.
I have been playing around in this circle for four or five year.
我在这个圈子里混了四五年。
16.
A band of grey hair encircled his bald dome.
他的秃头四周长着一圈灰白的头发。
17.
Clinical application on foursquare coil cable root cap attachment system in removable partial dentures
四角圈簧根帽附着体义齿的临床应用
18.
Four Scopes of Criterion of Criticism of Literature and Art Works;
论文艺作品批评尺度的“四重圈级”