- packet overhead
- 封: close; seal
- 包: wrap
- 负担: bear; shoulder
- 封包: packet over sonet
- 负担: 1.(承当) bear (a burden); shoulder 负担事故的责任 shoulder the responsibility for the accident; 负担费用 bear the expenses; 自己负担大学期间的全部费用 pay one's way through college; 旅费由东道国负担。 all the travelling expenses will be borne by the host country.2.(承受的责任) burden; load; encumbrance; freight 财政负担 financial burden; 家庭负担 family burden (esp. financial); 减轻学生负担 lighten the students' load; 精神[思想] 负担 mental burden; load on one's mind; 工作负担 load of work; work load; 负担法则 (租税) law of incidence; 负担系数 dependency coefficient
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