词汇	工程的
释义	工程的医engineered
随便看	letters of recommendation letters of reprisal letters of requistorial letters of the alphabet letters of the law Letters of Understanding letters of urgency for overdue payments letter some Letters on Literature Letters on the English letter sorter letter sorters letter-sorting letter sorting control letter-sorting counter letter-sorting frame letter-sorting installation letter sorting machine letter sorting machines letter sorting system letter-sound letters overt letterspace letter space letterspaces