1.A swarthy boy opened a book and propped it nimbly under the breastwork of his satchel.
一个面黧黑的少年打开书本,麻利将它支在书包这座胸墙底下。
2.Already the component standardizes and is seriated since being applied or used universally may deploy according to needing nimbly can shorten designing and making a period.