What does 'sweeping the line' mean in Subject 2?

[Mark]

Sweeping the line refers to the vehicle body crossing the line. In the Subject 2 driving test, if the vehicle body crosses the line, 100 points will be deducted, resulting in a failed test. In addition to the vehicle body crossing the line, other actions that will deduct 100 points include failing to park properly in reverse, stopping midway, not following the prescribed route or sequence, and exceeding the allotted time. The Subject 2 test is scored out of 100 points, with criteria for failing, deducting 20 points, 10 points, or 5 points. The test is considered passed under the following conditions: ① For applicants of large buses, tractors, city buses, medium buses, or large trucks, a score of 90 or above is required; ② For other vehicle types, a score of 80 or above is required. If a candidate fails the Subject 2 test, they are allowed one retake on the spot. If they choose not to retake or fail the retake, the test is terminated, and the applicant must reschedule the test after ten days. Within the validity period of the driving test permit, candidates can schedule the Subject 2 and Subject 3 road tests no more than five times. If the fifth attempt is still unsuccessful, any previously passed subjects will be invalidated.