 |
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| background; soil; ground; earth; primer | |||
| background (In a graphical user interface such as Windows, a pattern or picture in the screen background that can be chosen by the user) | |||
| background noise | |||
| background printing | |||
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| space condition in Morse code | |||
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| tel. telephone | |||
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tlo : 52 短语, 15 学科 |
| 一般 | 2 |
| 分析化学 | 5 |
| 卫生保健 | 2 |
| 建造 | 5 |
| 微软 | 13 |
| 收音机 | 5 |
| 放射学 | 2 |
| 环境 | 3 |
| 生命科学 | 1 |
| 电子产品 | 5 |
| 真空管 | 1 |
| 移民和公民身份 | 2 |
| 统计数据 | 1 |
| 药店 | 1 |
| 视频录制 | 4 |