The heart pumps by expending and contracting of muscle.心脏通过收缩肌肉抽取和放出(血液).Money held by households and firms is contracting - a harbinger of disinflation and slump.家庭和商户所持有的现金在缩水,这预示着通货紧缩和经济萧条.Most bats produce echolocati...
She said that dreams go by contraries.她说梦与现实正相反.He has interpreted my statement by contraries.他把我的话解释反了.Many things in our lives go by contraries.人生中有许多与我们愿望相反的事情....
Use a reliable method of contraception.采用安全的避孕方法。She is known to have liberal views on divorce and contraception.众所周知，她在离婚与避孕方面思想很开明。to give advice about contraception就避孕方法提供咨询Contraception birth control by prevention of...