Listen, Richard,doing aerobics for an hour is a lot different than lifting weights.
听着, Richard,一小时的有氧运动可与举重大不相同。
The used key is always bright.
常用的钥匙总是光亮的。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.