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1. | Any engineer worth his salt shall know how that machine work |
| 任何一位称职的工程师都应该知道那台机器是如何操作的 |
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2. | Any engineer worth his salt should know how that machine work |
| 任何一位称职的工程师都应该知道那台机器是如何操作的 |
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3. | Any engineer worth his salt should know how that machine works. |
| 任何一位称职的工程师都应该知道那台机器是如何操作的。 |
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