Those fears, it is argued, stem from a double squeeze on America's middle class.
这些担心，被认为是由于美国的中产阶级遭受双重打击。
They place the stove in the middle of the house, and stem the gaps in the window.
他们将火炉放在屋子中间，堵上了窗户的缝隙。
Sickness newspaper spot many middle the skin pitfall face body, pons, cerebellum stem, skull circle suddenly.
病报部位多在肤阱脸体、脑桥、小脑茎中部、颅骨圈突部。
Lowest cauline leaf below middle of stem; pedicel longer.
茎的最低的茎生叶中间以下；长时间的花梗。
Branches at the top is a semi-circular, in the middle grow into a slender stem, leaf is relatively wide.
枝条顶部是半圆形，中间长出一条细长的茎，叶片又是比较宽的。
To explore the changes of cerebral blood flow, collateral compensative capacity and the artery recanalization in patients with acute middle cerebral artery (MCA) stem occlusion.
目的探讨急性大脑中动脉(MCA)主干闭塞患者的脑血流变化、侧支循环代偿能力和血管再通情况。
The vertical distribution Brix in main stem or tiller are: nodal distance above middle node is higher, top and base modal distance are lower.
无论是主茎还是分蘖，其茎秆糖锤度的垂直分布为中部偏上节间较高，上部和 下部节间较低。
In the middle of stem is the pith, which composed of abundant parenchymatous cells with rhombohedral crystals.
茎中央是大型薄壁细胞构成的髓，具簇晶。
The protein content showed a tendency of decrease in stem section during stem swelling period. However, the RNA peaked at the middle stage of stem swelling.
瘤状茎形成过程中单位茎切片中蛋白质含量呈下降趋势，而RNA则早期上升、后期下降。
I liked STEM subjects when I was in the middle school, especially math. However I chose biology as my major when I went to college.
我在中学是喜欢理科，特别是数学，读大学时我选择了生物学。
When the hand wheel rotation, through the stem-driven plunger in the middle from top to bottom hole reciprocating movement to complete the valves open and close function.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
When the hand wheel rotation, through the stem-driven plunger in the middle from KER to bottom hole reciprocating movement to complete the valves open and close function.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
This fear may stem from the Middle Ages.
这种对猫的恐惧起源于中世纪。
As our important rapeseed producing area, Shannxi has unique geographical environment. The Sclerotinia stem rot is seriously in southern part of Shannxi, the middle part is lighter.
陕西省是我国重要的油菜种植区，由于其独特的地理环境，油菜菌核病表现为陕南地区冬油菜发病较为严重，关中地区冬油菜发病较轻。
As our important rapeseed producing area, Shannxi has unique geographical environment. The Sclerotinia stem rot is seriously in southern part of Shannxi, the middle part is lighter.
陕西省是我国重要的油菜种植区，由于其独特的地理环境，油菜菌核病表现为陕南地区冬油菜发病较为严重，关中地区冬油菜发病较轻。
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