Checknut
防松螺母, 保險(xiǎn)螺帽, 鎖緊螺母
??? 情景例句
And this is my sister Susan and her husband Harry Bennett
這是我妹妹Susan和她丈夫Harry Bennett
Do you get much rain in summer?
這里夏天雨水多嗎？
then at the height of his military success in the Thirty Years' War,had dictated her measurements and armament.
正處在"三十年戰(zhàn)爭(zhēng)"的軍事鼎盛階段，他親自規(guī)定了這艘船的規(guī)模和武器配備。