v.act (a role) with great restraint

同義詞：underplay

Direct Surgery of Underacting Oblique Muscles.
Response of coexisting underacting superior oblique and overacting inferior oblique muscles to inferior oblique weakening
AN EVALUATION OF UNDERACTING INFERIOR OBLIQUE MUSCLES.
Vertical diplopia after cataract surgery, overacting, and/or underacting extraocular muscle
Underacting inferior oblique muscle following myectomy or recession for unilateral inferior oblique overaction
AN EVALUATION OF UNDERACTING INFERIOR OBLIQUE MUSCLES.
Uniting global and local controllers under acting disturbances ☆
Uniting global and local controllers under acting disturbances
The Mechanism of Enhanced Curving Performance of Unsymmetric Suspension Trucks under Acting Traction/Brake Torque
Mechanical Behavior of Segmented Lining Structure of Tunnel under Acting Ground Fractures in Xia??an Zone