730 复习
Find a place to sit, or stand if you must, and read the first chapter of each book.

Narrow down your stack.

缩减你的那摞书。

narrow down 把……缩减，压缩

narrow 形容词，狭窄的 <—> wide，broad；动词，（使）变窄，（使）缩小

stack（码放整齐的）堆，叠，摞

If you would rather have book 1 over book 2, put book 2 back. 

如果你更喜欢第一本书超过第二本书，那就把第二本书放回去。

would rather 更愿意，情愿（would常缩写为 'd）后面加动词原形

over 介词，在……上方，覆盖，越过，超过

put back 把……放回去

Keep doing this. 

继续这样做。

If you would rather have book 3 than book 1, put book 1 back, etc.

如果比起第一本书你更喜欢第三本书，把第一本书放回去，等等。

etc.（et cetera的缩写）等等，诸如此类，以及其他