getdowntodo什么意思

get down to sth / doing sth
begin to do sth ; give serious attention to sth ; tackle sth 开始做某事；重视某事物；认真处理某事

答案出处：《牛津高阶英汉双解词典》

get down
KK: [ ]
DJ: [ ]
1. 吞下
She couldn't get the medicine down.
那药她吞不下去。
2. 记录
Please get down what he says.
请把他的话记下。
3. 使沮丧
The continual wet weather is getting me down.
持续的潮湿天气使我沮丧。

开始认真考虑 [简明汉英词典]
get down to

开始承担某件事

就是开始认真干某事 eg.Don't you think it's time we got down to business.