Poor posture, sitting or walking slouched over, compresses the body's organs.坐着或者走路的时候低头垂肩，这种不正确的姿势会压迫体内的器官。Is the human heart weak in comparison with the other organs?与其他器官相比，人的心脏是不是很脆弱？Designing silicon chips to m...
He became so pensive that she didn’t like to break into his thought.他陷入沉思之中,她不想打断他的思路。Their exchange of views usually remained within the limits of a pensive dilettantism.但是他们彼此的思想交流通常只局限在对于艺术趣味的一般性思考上.You may remember t...