be alert in answering questions的意思|示意

机灵的 2014英语六级基础词汇表（1） ... I’m agreeable to doing what you suggest. 我乐于照你的建议去做。 be alert in answering questions 留心回答问题 They are always on the alert for traffic signals. 他们总是很留心交通信号。 ...

留心回答问题 （表示悲痛、遗憾等的惊叹声）哎呀，唉 be alert in answering questions 留心回答问题 They are always on the alert for traffic signals. 他们总是很留心交通信号。

注意 2014英语六级基础词汇表（1） ... I’m agreeable to doing what you suggest. 我乐于照你的建议去做。 be alert in answering questions 留心回答问题 They are always on the alert for traffic signals. 他们总是很留心交通信号。 ...