这是一个尝试新技术的项目。

Zhè shì yīgè chángshì xīn jìshù de xiàngmù.

This is a project to try out new technologies.

这是一个尝试新方法的阶段。

Zhè shì yīgè chángshì xīn fāngfǎ de jiēduàn.

This is a stage of trying out new methods.

面对困难，他毫不犹豫尝试。

Miànduì kùnnán, tā háo bù yóuyù chángshì.

Faced with difficulties, he hesitated not to try.