| 字词 | 焦距 |
| 释义 | 焦距 名物理focal distance/length 测焦距take the focus 对好照相机的焦距focus a camera 调节焦距adjust the focus; focus the lens 调准焦距bring into focus; get the focus right 近视眼的焦距比正常眼睛的要短。A near-sighted eye has a shorter focus than a normal eye. |
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