1.
The general was content to give up a few miles of desert and retreat to a stronger fortified line.
将军对让出几英里沙漠，撤退到更牢固的防线很满意。
2.
The U.S. plans to release by October a pandemic preparedness plan that surveys the strength of each of these barricades.
美国在10月公布全球流感防备计画，检视每道防线牢固与否。
3.
not firmly or solidly positioned.
没有牢固的、稳固的定位。
4.
established firmly and securely.
稳固地或牢固地确立的。
5.
Sewing threads are made by twisting single yarns together to form a stronger thread.
缝纫线是由几股纱线合在一起纺成一股更加牢固的线。
6.
it is generally accepted that filament threads are stronger than spun threads of the same thickness.
一般来说,长纤纱制成的线比同样粗细的短纤纱制成的线更牢固。
7.
Connect the electric wires to the heater element. Make sure all wires are secure.
连接加热元件上的电线。确保所有连接的电线牢固可靠。
8.
All machinery must be securely guarded. Do not use machine with exposed dangerous parts.
所有机械都必须加有牢固的防护。不可使用危险部位外露的机器。
9.
The mattress should be firm, again so baby faces don't get stuck in soft pockets.
床垫必须牢固，这也是为了防止婴儿的脸埋进松软的垫子里。
10.
A heavily reinforced building used for launch operations of missiles and space launch vehicles.
火箭发射防护室用于发射导弹和太空飞行器的牢固建筑物
11.
Firmly Constructing Ideological Moral Line of Defense for Party Members to Refuse Corruption and Guard Against Deterioration;
筑牢党员干部拒腐防变思想道德防线
12.
The fence posts were fixed firmly in the ground.
栅栏的立柱牢牢地固定在地上.
13.
well and tightly constructed.
建造良好的，紧密牢固的。
14.
The foundation of the house is not secure.
这座房子的地基不牢固。
15.
but the house is strong.
不过屋子却挺牢固的。
16.
The foundations of the house are insecure.
这房屋的地基不牢固。
17.
Their marriage has been on shaky ground.
他们的婚姻一直不牢固。
18.
Fences must be sturdy, tight.
围篱必须是牢固耐用的。