Mr Diamond has two lines of defence.
戴蒙德先生有两道防线。
Yesterday's declaration, however, suggests that China is moving closer to scenarios long painted by defence experts under which it becomes more assertive and starts drawing lines for the US military.
但昨日的宣示似乎表明，中国正趋向变得更为自信，开始为美军划定底线，这正是防务专家们长期设想的情景。
That low level response happens around-the-clock and is one of our body's first lines of defence.
那些低水平的反应每时每刻都在发生，是我们的机体首要防线之一。
Multiple anti seismic lines of defence systems having strong column, middle beam and weak brace will be formed by selecting rational reinforced concrete brace sections.
选择合理的钢筋混凝土支撑截面可以形成“强柱、中梁、弱支撑”的多道抗震防线体系。
In overtaking battles the driver in front's best defence is his ability to pick braking points and cornering lines.
在超车事件中，前方车手最好的防御措施就是选取制动点和过弯路线。
The health promotion work of frontier defence army in Sinkiang is carried into effect difficultly because the army is dispersed in so many spots, too long lines and quite wide areas.
加之驻疆边防部队高度分散、点多、线长、面广，健康促进工作实施难度较大。
The body has two lines of defence against flu: proteins called antibodies that bind to viruses and stop them replicating, and immune cells that can hunt out and destroy infected cells.
人体通过两种方式抵抗流感：通过被称为抗体的蛋白质与病毒结合，阻止病毒复制；通过免疫细胞追击并消灭已经感染的细胞。
The body has two lines of defence against flu: proteins called antibodies that bind to viruses and stop them replicating, and immune cells that can hunt out and destroy infected cells.
人体通过两种方式抵抗流感：通过被称为抗体的蛋白质与病毒结合，阻止病毒复制；通过免疫细胞追击并消灭已经感染的细胞。
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