重点讲解：
1. spend time (in) doing sth.
花费时间做某事；
eg. So you have to spend more time testing.
所以，得花更多的时间进行测试。
eg. She can spend a whole day gossiping with her neighbours.
她能一整天都跟邻居们说长道短。
2. a great deal of
许多；大量；
eg. This book requires a great deal of concentration.
这本书需要全神贯注才能读懂。
eg. They absorbed a great deal of the Roman culture.
他们大量地吸收了罗马文化。
3. be born with
天生（具有某种特性）；
eg. He was born with a itching palm.
他生来就贪得无厌。
eg. He was born with a squint.
他先天斜视。