悬吊的屋顶下是一条宽阔的游廊。There is a wide veranda under the overhang of the roof.建造工人必须把新建房屋的屋顶固定得更牢靠些。Builders must fasten down roofs of newly-built homes more securely.我们可以瞥见脚下一些小村庄的屋顶。Below us you could glimpse the rooftops of a...
A few schools now offer counselling sessions; all have some system of pastoral care.一些学校现在开设咨询课；所有学校都有某种教导关怀体制。They offer a free counselling service which can offer help and advice on legal matters...他们提供免费咨询服务，给予法律问题的援助...
Dietary experts can advise on the ins and outs of dieting.饮食专家可以对日常饮食的方方面面提出建议。As with all dietary changes, reducing salt should be done gradually.像所有改变饮食结构的情况一样，减少盐的摄入量也应当采取渐进的方式。dietary fibre饮食纤维素...
Many groups can be added by nucleophilic substitution on a diazonium salt.许多基团可通过向得自胶的重氮盐作亲核取代而加以导入.Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.大多数连于芳核能被直接取代的基团仅限于重氮盐....