这两个型号之间的差异微不足道。

The differences between the two models are ___insignificant.

降雨量太小，不足以影响供水。

The rainfall was too ___insignificant to affect the water supply.

她觉得与团队的整体成功相比，自己的贡献微不足道。

She felt her contribution was ___insignificant compared to the team's overall success.