| 释义 |
Examples:bare one's left arm and take off one's cap as an expression of sorrow—Sagittarius spiral arm (of our galaxy)—triceps brachii (back of the upper arm)—actuator (arm of a lever)—carry (esp. slung over the arm, shoulder or side)—Perseus spiral arm (of our galaxy)—wrap one's arm around (used to describe the girth of a tree trunk)—Orion spiral arm or local spur of our galaxy (containing our solar system)—take sb's hand or arm in a too familiar way—lever arm (i.e. perpendicular distance from the fulcrum the line of force)— |