The heart is the body's engine room, responsible for pumping life-sustaining blood via a 60, 000-mile-long (97, 000-kilometer-long) network of vessels.
心脏是身体的能量室，负责通过60000英里(97000千米)长的血管网络泵入维持生命所需要的血液。
2
The heart is the body's engine room, responsible for pumping life-sustaining blood via a 60,000-mile-long (97,000-kilometer-long) network of vessels.
心脏是身体的能量室，负责通过60000英里（97000千米）长的血管网络泵入维持生命所需要的血液。
3
The Chevrolet Volt is leading the field in electric battery powered cars. Pelosi inspected the four-seat vehicle that touts a 64-kilometer range without using its gasoline engine.