Under maintenance feudalism rule premise, attention textbook scientific nature and inappropriateness.在维护封建统治前提下, 注重教科书的科学性和适用性.He has to pay maintenance to his ex-wife.他必须给前妻赡养费。Easy operation and maintenance, reliable a...
At Kukhar's instigation he joined the restaurant as an apprentice chef.在库哈里的鼓动下，他到餐馆做了厨师学徒。He left school at 15 and trained as an apprentice carpenter.他15岁辍学，当上木工学徒。My son is an apprentice in a furniture maker'...
服务员笔直站立着，餐巾折叠着放在他们的手臂上。The waiters stood to attention with napkins folded over their arms.她将其折叠起来，塞进了钱包里。She folded it up, and tucked it into her purse.我看见了3张折叠床，其中两张已有人占了。I saw three camp beds, two of which were occupie...
The carbon is electrophilic centre.碳是亲电的中心.It will become deepen to the students'recognization in mechanism of Aryl electrophilic substitution.这些问题的讨论将深化学生对芳烃亲电取代反应机理的认识.The rate constants of radical and electrophil...