含量: content, quantity contained...
副: secondary, auxiliary, deputy, assistant, vice-, (measure word for a pair)...
爷爷: (coll.) father's father, paternal grandfather...
不怎么: not very, not particularly...
相提并论: to discuss two disparate things together (idiom); to mention on equal terms, to place on a par with, (often with negatives: impossible to mention X in the same breath as Y)...
路灯: street lamp, street light...
往来: dealings, contacts, to go back and forth...
互助: to help each other...
测算: to take measurements and calculate...
手帕: handkerchief...
