D. Catching the drift of the content instead of understanding every word and never waste too much time on single words.
作听力练习要重材料大意，而不要力求听懂每个词，不要在单个词上浪费太多时间。
Instead of a single-fuselage cylinder, the D series melds two partial cylinders into a distinctive “double-bubble” shape.
D系列飞机采用了一种独特的“双体”外形机身，即类似于将两个柱体融合在一起的形式，改变了传统的单体机身。
Instead of the flat-looking visuals of the old service, this one will give users a 3-D version of their Neopet avatar and let them play games, trade items, chat with other players and share ideas.
在旧的版本里是平淡无奇的界面，新版本让使用者拥有立体的Neopet化身，玩游戏，交易东西，和其他玩家交谈和交换想法。
However, one major obstacle is getting cells grown in a lab dish to form 3-d shapes instead of flat layers.
但一个主要的障碍就是如何让培养皿中的细胞生长成三维的形状而不是仅仅在平面上生长。
But instead of just putting down ink on paper, they stack up layers of living material to make 3-d shapes.
但和在纸上喷墨不同，他们将层层活性物质累积从而制造一个3d物体。
I believe that the best way to take notes is in the __ D __ of the book instead of on the notebook.
我认为记笔记的最好方法是记在页边的空白处，而不是记在笔记本上。
Due to the difficulty of FDTD dealing with the dispersive material, this paper use the D-B method instead of E-H method, which is more suitable for dealing with dispersive material.
针对普通FDTD处理色散媒质的困难，本文通过D - B场量的迭代方法代替传统e - H场量的迭代方法，可以很方便的处理色散媒质。
The rats of the experimental groups were inoculated with CT(immunotype D)into two sides of the ovarian bursa, while those of the control group with 2SP instead.
对照组接种2SP代替沙眼衣原体，其余每组大鼠均在卵巢囊接种沙眼衣原体D型株。
The D camera eyepiece is attached to the spotting scope instead of a standard observation eyepiece.
照相机目镜可作为附加件用于观鸟镜，代替标准的目镜使用。
The nonlinear inversion algorithm based on MLNI is applied to inversion problems which can concentrate the imaging region to a particular range instead of whole 3 D domain.
在反演中采用基于MLNI的非线性反演方法，利用这种方法可以将成像区域集中于一定范围内而不是整个三维空间。
The presented method is convenient to evaluate the target location accuracy and the efficiency of 2-D, 3-D as well as the heterogeneous radar network instead of the tedious computer simulations.
该文方法不要大量的计算机仿真就可以方便地评估2-D、3-D以及混合雷达网的目标定位精度和效能。
It is a letter rejecting the buyer's request for a 10% commission instead of 5% and payment by D/P instead of L/C.
信中卖方拒绝接受买方的还盘：由5%的佣金增到10%； 凭信用证支付改为凭付款交单的支付方式。
We agree to draw at 50 days D/P instead of 20 days D/A.
我方同意开具50天期付款交单而非20天期承兑交单。
We agree to draw at 50 days D/P instead of 20 days D/A.
我方同意开具50天期付款交单而非20天期承兑交单。
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