Artificial intelligent assistant

derrick

derrick
/ˈderɪk; `dɛrɪk/ n
1 large crane for moving or lifting heavy weights, esp on a ship 转臂起重机; (尤指轮船上的)桅杆起重机.
2 framework over an oil well or borehole, to hold the drilling machinery, etc 井架; 钻塔. Cf 参看 oil rig (oil).

牛津英汉双解词典

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