英语语法分析

Tom's whole class were of a pattern--restless, noisy, and troublesome.

汤姆的整个班级都是一个模式——躁动不安、吵吵闹闹、麻烦不断。

It was a tedious and troublesome piece of work, but he finished it at last.

这是一件乏味而麻烦的工作，但他终于完成了。

A troublesome area is the management of the keys used for encryption and authentication.

一个麻烦的领域是用于加密和身份验证的密钥的管理。