Much of Congress's work is done by congressional committees,the number and scope of congressional committees can't change.
国会的大多数工作是国会委员们做的。这样的情况常常发生：
Particularly when political control over the Chamber changes parties and when the juridiction of committee overlaps, as is often the case.
尤其时当队议院政治控制的党派发生变化的时候，国会委员会的人数和工作范围经常变化，以及在对委员会的管辖发生重叠时。
In the Senate, the following committees currently have jurisdition over issues relating to environmental protection or natural resource conservation.
在上院里，下列委员会目前对有关环境保护问题、自然资源问题有管辖权，
The agriculture, nutrition, and forestry committee, the appropriation committee, the commerce,science and transportation committee,
即农业、健康、森林委员会、拨款委员会，商务、科技、交通委员会，
the energy and natrually resouces committee, the environment and public works committee, and the government affairs committee.
能源和自然资源委员会，环境和公共事务委员会，政府事务委员会。
In the House of Representatives, the following committees have jurisdtion over environmental protection or natural resource conservation:
在下议院里，下列委员会有权管辖环保和自然资源保护问题：
the agricultural committee, the appropriation committee, the commerce committee, the governmental reform and oversight committee,
农业委员会、拨款委员会、商务委员会、政府革新委员会、
the resource committee, the transportation and infrastructure committee and the science committee.
资源委员会、交通和基础设施委员会及科学委员会。