Furthermore, externalities are also present.而且, 也出现了外在化问题.The third involves the undesirable externalities that may accompany productivity increases.第三是伴随生产率提高而产生的不良的外部影响问题.As we saw earlier, the market mechanism breaks ...
Oh, goody, I like games.哦，太好喽，我喜欢玩游戏。We're giving away a free goody bag with every children's meal.每一客儿童餐我们赠送一袋礼品.Don't be such a goody - goody!别这么老充好人!...
如果使用得当，避孕套是很有效的避孕手段。Condoms are an effective method of birth control if used with care.服务项目包括避孕建议和健康检查，并且免费提供。The service covers contraceptive advice and health checks, and is available free.服用避孕药是最有效的避孕方法。The pill is th...
目的构建β淀粉样前体蛋白裂解酶 ( BACE ) 特异性小干扰RNA真核表达载体.Objective To construct eukaryotic expression vector of siRNA specific for � � - site APP cleaving enzyme ( BACE ).褐藻胶裂解酶能裂解褐藻胶制备寡糖, 是一种重要的工具酶.Alginate lyase can degrade alginates ...
He made his triumphal entry into Mexico City.他以胜利者的姿态进入墨西哥城。He made a triumphal entry into the city.他以胜利者之姿进入了那座城市。The triumphal arch commemorates Caesar's victory over Pompey.凯旋门用于纪念恺撒击败庞培，得胜而归。...
These zip-top bags are great space-savers if storage is limited.如果可储藏的地方有限，这些拉环式背包能节省很大空间。Low interest rates are bad news for savers.低利率对于储蓄者来说是个坏消息。Only children whose parents are existing savers may open an account.只有现...