The hijackers were armed with hand grenades.劫机者身上带着手榴弹。I'm in direct contact with the hijackers.我与劫机者保持着直接的联系。The hijackers seemed anxious not to harm anyone.劫持犯似乎焦虑不安，不想伤害任何人。I’m in direct contact with the hijacker...
He burrowed into the pile of charts feverishly.他非常紧张地在一堆图表中翻找。The rabbits burrowed into the hillside.兔子在山腰上打洞.She burrowed her head into my shoulder.她把头紧靠在我的肩膀上。...
This is the basic operating principle of many thermostats.这是许多恒温箱的基本工作原理.Thermostats can be used to regulate the temperature of a room.恒温器可用来调节室内温度.Some thermostats are too sensitive and easily vibrated.有些定温器太灵敏,也容易振动....