Know and memorize the precise construction of each transitional sentence.

请记住每一个转折复句的精确结构。

Is it "if," or "when," or "then I." Know and memorize the precise construction of each transitional sentence.

是用“如果”，“当时”，“然后我”知道吗？请记住每一个转折复句的精确结构。

Indicate when users are leaving the home site (e.g., a disclaimer sentence, descriptive sentence about the linked source, or transitional screen).

在用户要离开主站点时给予提示(如，使用放弃语句，有关链接源的描述性语句，或过渡屏幕)。