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bǎo hù保护protect
jiā qiáng加强strengthen; reinforced
tīng qǔ听取listen to
kāi zhī开支pay; pay wages/salaries
bì yào必要necessary
yì shí意识consciousness; realize
xiàn xiàng现象phenomenon
diàn dēng电灯electric lamp
shěng省leave out; save
jié shěng节省save
jié yuē节约conserve; frugalness
jì yòu既…又…both...and...
guān dēng关灯switch/turn off a light