久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

v.維持( sustain的第三人稱單數 )，支撐，忍受，長期保持...

sustains的音標：...

The sea wall sustains the shock of the waves.海堤能抵擋海浪的沖擊.The breakwater sustains the shock of the great waves.防波堤承受巨浪的沖擊.This novel sustains the reader's interest to the end.這部小說使讀者到最后都依然興趣濃厚....