Figure out how much time you realistically can devote .
计算出你实际能够投入多少时间。
Few people are realistically looking at measures to legalise hard drugs such as cocaine or heroin .
很少有人切实关注可卡因或海洛因等硬毒品的合法化措施。
Whereas it is possible to simulate realistically the forces which make virtual skin and fabric hang , bend , flap and stretch , recreating the subtle ways they reflect light has so far proved extremely tricky .
Another challenge : the ps3 has the ability to render images more realistically than ever before , and developers took extra care with the smallest details like the way muscles ripple when they move .
