标本: specimen, sample, the root cause and symptoms of a disease...
讽刺: to satirize, to mock, irony, satire, sarcasm...
船只: ship, boat, vessel...
职务: post, position, job, duties...
空中: in the sky, in the air...
攻读: to major (in a field), to study a specialty to obtain a higher degree...
温带: temperate zone...
清洁工: cleaner, janitor, garbage collector...
联络: to get in touch with, to contact, to stay in contact (with), liaison, (math.) connection...
履行: to fulfill (one's obligations), to carry out (a task), to implement (an agreement), to perform...
