记忆方法
将“low”想象成低矮的桥梁，而“frequency”想象成桥梁通过的汽车流量。桥梁低矮意味着通过的汽车（即“频率”）少，即“low-frequency”表示低频的。
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权威例句
- 1. Solid low-level waste will be disposed of deep underground.
- 放射性水平低的固体废料将做地下深埋处理。
- 2. Doctor believed that his low sperm count was the problem.
- 医生认为他的精子数太低是问题所在。
- 3. With a low-pitched rumbling noise, the propeller began to rotate.
- 伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。
- 4. We're a bit low on bed linen. You'll have to make do.
- 我们的床单有些次，您将就着用吧。
- 5. The official number of people carrying the AIDS virus is low.
- 艾滋病病毒携带者的官方数字并不高。