expression前面加a還是an
來源:魅力女性吧 2.12W
前面用an,例如:
1、Well, now we have an expression for the energy.好,現在我們有能量的表示式。
2、Its key is to find an expression for coefficient β.關鍵在於β係數表示式的求出。
3、He screwed his face into an expression of mock pain.他面部扭曲,假裝疼痛。
前面用an,例如:
1、Well, now we have an expression for the energy.好,現在我們有能量的表示式。
2、Its key is to find an expression for coefficient β.關鍵在於β係數表示式的求出。
3、He screwed his face into an expression of mock pain.他面部扭曲,假裝疼痛。