微纤维织物既防水又防风。Microfibre fabrics are both water resistant and windproof.把窗户封起来以防风.Seal ( up ) the window to prevent draughts.防风门和窗玻璃三折?清仓大甩卖?70 % off all storm doors and window panes Everything must go?...
The lungs consist of millions of tiny air sacs.肺由数百万个小气囊组成。It consists of a stack of flat, membrane - bounded sacs.它由一大堆扁平的膜缘清楚的囊组成.The testis sacs communicate with the seminal vesicles.精巢囊与储精囊相连....