Survive selection

-- 难句 --

Selection is hell on dysfunctional traits: if adolescence is essentiallya collection of them—angst, idiocy, haste, impulsiveness,selfishness, and reckless bumbling—then how did those traits survive selection?

-- 结构 --

主句1: Selection is hell on dysfunctional traits.

主句2: then how did those traits survive selection?

if adolescence is essentially a collection of them 条件状语从句

-- 词汇 --

1. dysfunctional traits 失去功能特征

2. angst, idiocy, and haste, impulsiveness, selfishness, and 3. recklessbumbling 焦虑、痴狂、轻率、冲动、自私、莽撞、笨手笨脚

4. survive selection 经过选择而存在

-- 下期难句 --

A web-based program constantly modifies and enhances the games you playto build on the strengths you are developing—much like an effective exerciseroutine requires you to increase resistance and vary your muscle use.