英语语法分析

These are all kinds of devices for marking a book intelligently and fruitfully.

在书上作记号，有各种各样好的、行之有效的方法。

Second, exporters foster skills, technology and expertise that can fruitfully spill over to other enterprises.

第二，出口企业培育出的技能、工艺及专长对其他企业有着很强的溢出效应。

The participants also identified areas of study that could not be researched fruitfully from other perspectives.

与会者们还确定一些难以从其他角度获得丰硕成果的研究领域。