The mother provides the embryo with nourishment and a place to grow.母亲为胎儿提供营养和成长的空间。Sugar gives quick relief to hunger but provides no lasting nourishment.糖能快速缓解饥饿感，但不能提供持久的营养。To help provide essential nourishment, we�...
The mother provides the embryo with nourishment and a place to grow.母亲为胎儿提供营养和成长的空间。He ventured that plants draw part of their nourishment from the air...他大胆提出植物从空气中吸收部分养分的观点。Sugar gives quick relief to hunger but provid...
The Marshal stepped over the vacuum-cleaner and stumped out of the room.元帅迈过真空吸尘器，脚步沉重地走出了房间。He could hear the whirr of a vacuum cleaner.他能听到真空吸尘器的嗡嗡声。I went down on one knee to plug in the vacuum cleaner.我单腿跪下插上吸尘器插头....
Suffice to say, it was more than a couple of years ago!我只想说，那是几年前的事了！Generally a brief note or a phone call will suffice.通常写个便条或打个电话就足够了。This single item will suffice to typify all the rest.即此一端,可概其余....
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.Many groups can be added by nucleophilic substitution on a diazonium salt.大多数连于芳核能被直接取代的基团仅限于重氮盐.Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts....