little change的用法和樣例：
例句
- There is no change in the visual appearance of a superconductor.
超導體表觀(guān)面貌并無(wú)變化。 - Left ventriculars structure and cardiac function were observed.Result Both SBP and DBP decreased, HR didn't change, LVMI, IVST, PWT became thinner.
結果治療后降壓效果顯著(zhù)，心率無(wú)變化，室間隔厚度，左室后壁厚度及左室重量指數明顯降低。
