单词：lax
n. 腹泻, 松元音
a. pronounced with muscles of the tongue and jaw relatively relaxed (e.g., the vowel sound in `bet')
a. lacking in strength or firmness or resilience
s. emptying easily or excessively
考试类型：[IELTS]
lax的用法和样例：
例句
- He's too lax with his pupils.他对小学生管教太松。
- Don't be lax about fulfilling your obligations.完成你的职责不要松懈。
- People are surprised for the lax security of the bank.人们对这个银行不严格的保安措施感到很吃惊
- A lax vowel is very reduced, in fact, you don't need to move your face at all.短元音很弱化和简化了，实际上，发这些音，你根本不用动你的面部。
经典引文
Those organs which possess a lax structure..as the lungs.
出自：T. H. Green
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