试题题干
Translate the following sentence into Chinese.
The vital triangle should tighten. Relax the muscles at the end of your exhalation, then inhale gently.
参考答案
试题解析
考点：vital triangle 极其重要的三角区；exhalation 呼气；inhale 吸气。
句子结构：第一句为一个简单句。第二句为一个祈使句，祈使动作为relax 和inhale。