Ardent
发表于 2025-4-1 05:02:34
Lecture Notes in Mechanical Engineering It was rarely serious. He did not appear to be perturbed with his new surroundings nor doubtful of his powers to succeed in his new duties. Circumstances permitted no gradual introduction to his work. A large class of boys, the regulation 60, awaited him, and he commenced at once.
oxidant
发表于 2025-4-1 07:15:16
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