four-two-one syndrome 四二一综合征
one two three four 一二三四歌 ; 唱片名
two-four 四分之二拍 ; 四分之二拍子的
two-by-four 长宽为二寸与四寸的
Two and two is four 二加二等于四
Two By Four 二乘四 ; 二寸厚四寸宽的木料或建材
two-position four-way valve 二位四通阀
Two Minutes Four Rooms 两分钟逃出四房间
Two by four arch 矫治技术
UNIT 15: four two-person product-related conversations at a trade fair;
单元15:四段两人在展会上关于商品的对话;
As the name suggests, this is four two- or three-rank lines of infantry arranged as a hollow square, with everyone facing outwards.
如它的名字一样,方阵由四组排成两线或三线的步兵组成一个空心正方形,所有人都朝向外侧。
The experimental study on the performance of nucleate boiling of R22 outside the surface enhanced evaporation tubes was conducted by use of four two-sides enhanced tubes with different geometries.
介绍了表面增强型蒸发强化管,并对氟利昂制冷工质R22在该管外的沸腾换热进行了实验研究。
It found that almost four percent of deaths around the world in two thousand four were linked to drinking alcohol.
VOA: special.2009.09.08
So in addition to having these two carbon bonds, we actually also have four carbon hydrogen bonds in addition to our carbon-carbon bonds.
在这碳碳之间的键以外,我们还有四个碳氢键,除了我们的碳碳键外。
Four times the number of pigs plus two times the number of chickens, assuming they're not next to a nuclear reactor, is 56.
其它还有什么呢?,4倍的猪的数量加上两倍的鸡的数量,考虑到它们不是住在核反应堆旁的。
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