| 摘要 |
An improved text line underscoring and overscoring method having a graspable control member (21) which may be grasped between the thumb (4) and fingers (5, 6, 7) at a first end (27), and be movably angleably connective at an opposite, connective end (22) with a first non-pointing end (28) of a pointer arm (25) with a second pointing end (26) aligned with a reader's line of sight toward text lines (8) with intervening linear spaces (9), so that when the thumb and fingers twist the control member (21) in alternating directions, the first end of the pointer arm (28) will be urged to rotate, and the second pointing end (26) of the pointer arm (25) will be urged to shuttle left and right, whereby the second pointing end (26) of the pointer arm (25) will be enabled to underscore or overscore text lines to be read.
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