v. 偏航；急转向（sheer的ing形式）
adj. 绝对的；峻峭的；全然的

Sheer \Sheer\, v. i. [imp. & p. p. {Sheered}; p. pr. & vb. n.
{Sheering}.] [D. sheren to shear, cut, withdraw, warp. See
{Shear}.]
To decline or deviate from the line of the proper course; to
turn aside; to swerve; as, a ship sheers from her course; a
horse sheers at a bicycle.

{To sheer off}, to turn or move aside to a distance; to move
away.

{To sheer up}, to approach obliquely.