踏莎行 欧阳修纱窗日落渐黄昏,金屋无人见泪痕。Current wisdom says that (当前流行的看法认为)if you want a successful product, you need first to perform detailed market analysis, making sure that there are plenty of people who need the new product and that your entry into the market will be able to gain a significant share of that market. |