词根信息

词根: strain / strict / string 来源: 拉丁语 stringere（拉紧、缚紧、压缩）变体: strain-, strict-, string-, stress- 关联词根: tract（拉）

strain / strict / string — 拉紧、束缚

核心含义

拉丁语 stringere = to draw tight, to bind, to compress。本义是把绳子拉紧，引申为约束、限制、压力。

constraint — Budget constraints often limit the scope of government projects.
- 写作 Task 2 讨论限制条件：time / financial / budget constraints
restrict — Many countries have restricted the use of single-use plastics.
- 写作 Task 2 政策话题核心动词：restrict access / trade / immigration
strict — Strict regulations are needed to protect the environment.
- 写作：strict rules / regulations / controls
restrain — The government should restrain inflation to protect consumers.
- 写作经济话题：restrain spending / growth / inflation
strain — The healthcare system is under severe strain during a pandemic.
- 写作/阅读：place strain on / under strain / financial strain

[前缀] + strain/strict

con- 一起 + strain → constrain   约束（拉紧在一起）
re-  回   + strain → restrain   克制（拉回来）
re-  回   + strict → restrict   限制（拉回来）

constrain vs restrict：constrain 更强调”被迫”的状态（被条件约束），restrict 更强调”人为划定界限”（限制范围）
constraint vs restriction：几乎同义，constraint 更偏”客观限制”（时间/预算），restriction 更偏”规定限制”（法律/规则）
strict vs severe：strict 是”不放松”（严格的老师），severe 是”严重/严厉”（severe punishment）
strain vs stress：strain = 外在压力导致的张力（under strain），stress = 内在感受的焦虑（under stress）