You can make your stomach look flatter instantly by improving your posture.通过采取更好的坐姿，你的腹部马上就会看起来平坦一些。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。If bad...
I need to examine all possible contingencies.我需要审视一切可能出现的情况。We must consider all possible contingencies.我们必须考虑一切可能发生的事。We must be prepared for all contingencies.我们要作好各种准备,以防意外....
I changed the ink cartridges in my ballpoint pen.我换了圆珠笔里的墨水芯.You can buy the ballpoint pen anywhere.你到哪儿都能够买到这种圆珠笔.Can you give me two refill of each color for the ballpoint pen?能不能请给这支圆珠笔每种颜色配两根替换笔芯?...