strain
【原文】Boeing's Dreamliner woes are straining one of the aviation world's coziest relationships: that between Boeing and its customers and suppliers in Japan.
【単語の意味(日本語)】
~を(ぴんと)張る、引っ張る;~を緊張させる
【単語の意味(日本語)】
~を(ぴんと)張る、引っ張る;~を緊張させる