Those felt pens are new.

那些毡头笔是新的。

youdao

In one charming early experiment, children were given felt-tipped pens to play with, an activity that most enjoyed.

以前有一个有趣的实验，研究者发给孩子们彩色的软头笔玩，那是一项孩子们最喜欢的活动。

youdao

Use the colored felt-tipped pens to add color and details. The last step is the most fun. Enjoy wearing your new T-shirt!

用彩色墨水笔填充颜色和补充细节，最后一个环节是最有趣的。穿上自己设计的T恤尽情享受吧！

youdao

Work on this "prototype" allowed him to figure out technique, layout and technical details like the type of paper (19-by-13-inch watercolor) and writing instruments (felt-tip pens).

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