he -> her -> here
he -> hear -> heard
he -> heart
weeping willow 垂柳
he -> hear -> heard
he -> heart
weeping willow 垂柳
The most content which tagged as "科技英文" came from the class content in "Engineering English", it was taught by Porf. Mao Qu-Wu, Dept. of Electrical Engineering, National Cheng Kung University. The others are my working experience and notes for references.
