a.  突然的，出其不意的

a.  生硬的，粗鲁的

• abruptly  ad. 突然地；唐突地

• come to an abrupt end/halt  突然停下

• an abrupt change 突然的变化

• The bus came to an abrupt halt.

  公共汽车突然停了下来。

• Sorry, I didn’t mean to be so abrupt.

  对不起，我不是故意这样无礼的。

• Then, abruptly, the cod population collapsed. 数量突然大幅减少

• Its sheer rock sides sweep up from a broad base until they cut off abruptly at the flat summit. 突然断开

• Most forms of steel abruptly become brittle (脆的) at temperatures below about -25°C unless they are mixed with other metals.

  突然变脆

BrE /əˈbrʌpt/   

NAmE /əˈbrʌpt/