Jack can keep calm when the machine breaks down because he isan experienced mechanic.
拓展资料:
keep calm:
读音:英[ki:p kɑ:m] 美[kip kɑm]
释义: 沉住气;平心静气;
例句:Try tokeepcalmand just tell me whathappened
镇静点,告诉我出了什么事。
2.break down:
读音:英[breik daun] 美[brek daʊn]
释义: 失败; 划分(以便分析); 损坏; 衰弱下来;
例句:Their car brokedown.
他们的车子出故障了。