Key Words [00:00.78]关键词 [00:01.57]The Most Common Expressions [00:02.90]最常用表达法 [00:04.23]That's OK.No reason to apologize. [00:09.21]没事儿，没什么好抱歉的。 [00:14.18]That's all right.Don't let it worry you. [00:19.04]没...
