8.3

timing :

n：时机；with perfect timing , he captured the perfcet shot of the smile.//他在完美的时机抓拍下了完美的笑容。

inclusive:

adj:包含……在内的；包罗广泛的；The money he is paying the waiter is inclusive of tips .//他付给服务员的钱里包含了小费。

supervise:

v:监督；指导；管理；The teacher supervises the students doing the exam.//老师正在监督学生考试。

neat:

adj:整洁的；不掺水的；This house is very neat.//这个房间很整洁。