| 单词 | beam |
| 释义 | beam n. & v. --n 1. a long sturdy piece of squared timber or metal spanning an opening or room, usu. to support the structure above. 2. a a ray or shaft of light. b a directional flow of particles or radiation. 3. a bright look or smile. 4. a a series of radio or radar signals as a guide to a ship or aircraft. b the course indicated by this (off beam). 5. the crossbar of a balance. 6. a a ship's breadth at its widest point. b the width of a person's hips (esp. broad in the beam). 7. (in pl.) the horizontal cross-timbers of a ship supporting the deck and joining the sides. 8. the side of a ship (land on the port beam). 9. the chief timber of a plough. 10. the cylinder in a loom on which the warp or cloth is wound. 11. the main stem of a stag's antlers. 12. the lever in an engine connecting the piston-rod and crank. 13. the shank of an anchor. --v 1. tr. emit or direct (light, radio waves, etc.). 2. intr. a shine. b look or smile radiantly. Phrases and idioms beam-compass (or -compasses) compasses with a beam connecting sliding sockets, used for large circles. a beam in one's eye a fault that is greater in oneself than in the person one is finding fault with (see Matt. 7:3). off beam colloq. mistaken. on the beam colloq. on the right track. on the beam-ends (of a ship) on its side; almost capsizing. on one's beam-ends near the end of one's resources. Etymology: OE beam tree f. WG |
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