reach up : 接近;伸手;举手;探身
Reach up to your knees with your fingertips.用指尖触膝。Analysts estimate that daily production could reach up to a million barrels
within a year.分析师估计，利比亚原油日产量在一年之内可达到100万桶。
reach out: 伸(手)；伸手(拿…)；(手)伸向前；(草木向…)生长
As I reach out to turn off the set, the strength goes out of my arms.
当我伸手去关电视，力量却从双臂中失去。
The organization is trying to reach out to the areas where poor people
live.这个组织正在深入调查那些穷人居住的地区。
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