usefulness什么意思？

Usefulness includes the fact the negatives have been calibrated.所谓有用,是指在底片上要有标度.The theory is of limited usefulness.这个理论用途有限。The report is of potential usefulness to the government.这个报告可能对政府有用。There are doubts about the ...

usefulness的音标：usefulness的英式发音音标为：['ju:sfəlnəs]usefulness的美式发音音标为：['jusfəlnɪs]...

There are doubts about the usefulness of these tests.这些试验是否有用，人们有所保留。I was persuaded of the usefulness of his new device.我相信了他的新装置的实用性.The index adds appreciably to the usefulness of the book.索引明显地增加了这本书的实用价值....

“下赌注”的拼音为：xià dǔ zhù...

Pare the rind from the lemons.把柠檬皮剥掉。First, pare the rind from the lemon.首先把柠檬皮剥掉。Pare off the rind from the orange using a sharp knife.用锋利的刀子削去橙子皮.Pare the brown skin from the meat with a very sharp knife.用一把非常锋利的刀将褐色的皮...

adj.就座的，固定的，有…座位的，根深蒂固的v.使就座( seat的过去式和过去分词 )，使就职，使获得座位（或席位），可容纳若干座位...

circumscribe的第三人称单数（三单）为：circumscribes...

“告别的”的英语可以翻译为：valedictory，apopemptic ...

adj.沉着的，镇定的，保持平衡的，均衡的，静止不动的，悬空的...

n.河马（产于非洲）...

n.异胃蛋白酶...

I sprang 400 pounds for her overcoat.给她买那件大衣，我花了400镑。The lion roared once, and sprang.狮子大吼一声，跳了起来。The ball sprang back and hit him.球弹回打在他身上。The door sprang open and he came in.门反弹开了，他走了进来。New theatres and arts centres sp...

insane的比较级为：insaner...

“无核的”的英语可以翻译为：nuclear-free，seedless，[医] acaryote，anuclear ...

克拉拉一直坐在树阴下的躺椅上看书。Clara had been reading in a lounge chair under a shady tree.在曲折蜿蜒的鹅卵石街道的两边，一把把阳伞为露天咖啡馆遮阴挡阳。Umbrellas shade outdoor cafes along winding cobblestone streets.她冲他阴沉着脸。She made a sour face in his direction....

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legitimize的一般过去时为：legitimized...

异源三倍体...