服用避孕药是最有效的避孕方法。The pill is the most efficient method of birth control.法律允许医生给16岁以下未成年人开避孕药。The law allows doctors to prescribe contraception to the under 16s.她吃口服避孕药已有3年。She had been on the pill for three years....
Homologous parts, as has been remarked by some authors, tend to cohere.某些作者曾经说过,同源部分有互相合生的倾向.The adornments do not cohere with the basic design.装饰物与设计的基调不协调.When you squeeze a handful of snow, the flakes cohere to make a...