Go left onto the A107 and bear left into Seven Sisters Road.向左驶入A107号公路,然后左转进七姐妹路。Excited voices were shouting that the road was blocked by soldiers.有人气愤地喊道马路被士兵封锁了。She took her eyes off the road to glance at me...她把视线从公...
某些病毒的核衣壳是由被膜所包绕.In some viruses the nucleocapsid is surrounded by an envelope.溶酶体也为膜所包绕,含有分解某些大分子的酶.Lysosomes are also membrane bound and they contain the enzymes concerned with the breakdown of macromolecules.心脏被一种叫做心包的...