pen pal 什么意思

pen pal:

if someone is a pen pal,then someone you writing letter to or send email to regularly,but you may not actually met that person in person.

device:

设备，装置，手段(政府)

convert:

改造，换算，使用介词into

bringing electicity access to countries through ocean energy

named:

not a new name

beacon of hope:

希望灯塔

life-changing:

experience, jump,

braille:

盲文

to prove:

show reality 

fingertip:

the very top of the finger, use it to read

trampoline:

蹦床，invented by kids

2020-05-29