Moodiness, which imposes a small cost on the relationship, may function as both an alarm bell and as an assessment device to test the strength of the bond.

情绪多变，会给爱情带来一些小损害，既是爱情的警钟尤其到测试爱情的强度的作用。

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The Bell X-5 gave NACA and Air Force researchers a chance to test out variable-sweep wings.

在贝尔x - 5和空军赋予的NACA研究人员一个机会来测试可变后掠翼。

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Bell and Watson had everything set for their first test of the invention.

贝尔和华生为第一次测试他们的发明做好了一切准备。

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Vaughan also has Steve Harmison at his disposal, but the Durham star turned in a mixed display against a strong Invitational XI which featured Test players Matthew Bell, Peter Fulton, Stephen Fleming and Mathew Sinclair.

BBC: England wait on Sidebottom injury

"If we can get early wickets that will set up a great chase and a great Test match, " Bell told BBC Sport.

BBC: Ashes: Ian Bell hopeful of England fightback in Perth

Foster and the rest of his MCC teammates, including Test hopefuls Michael Vaughan and Ian Bell, will be hoping for better weather on the final day at Lord's, with only 89 overs bowled so far.

BBC: Foster plays down England chances