Holland's system received a severe test when a truck loaded with chemical substances caught fire in the tunnel and exploded.

当一辆装满化学物质的卡车在隧道中起火并爆炸时，霍兰德的系统受到了严峻的考验。

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In the latest test, SpaceShipTwo did not fire its rocket engine to climb to space.

在最近一次测试中，太空飞船二号由于火箭引擎点火失败而没有升入太空。

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Teach him gently, World, but don't spoil him, because only the test of fire makes fine steel.

以温柔的方式教导他，世界，但不要溺爱他，因为只有烈火才能炼出真钢。

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The international community is urging the North Koreans to repeal its announcement to test-fire its long-range missile.

WHITEHOUSE: President Obama and President Lee Hold a News Conference

Both countries agreed that North Korea's announcement to test-fire its long-range missile is a violation of U.N.

WHITEHOUSE: President Obama and President Lee Hold a News Conference

U.S. and South Korean officials have said that North Korea seems to be preparing to test-fire its long-range missile, the Taepodong-2.

CNN: U.S. envoy for North Korea may visit Pyongyang