2) Example: ① Are you low-carbon today? ② Low-carbon life makes our life better! ③ Energy saving is the biggest carbon reduction. 4 low carbon, make life better; Enjoy a low-carbon life and never fall behind; ; Low-carbon life, starting from me; Refreshing the earth depends on everyone, and low carbon enters you, me and him; I don't want the greenhouse effect, I embrace a low-carbon life; Save water and electricity, talk about environmental protection and low-carbon life, I will build it; Take less cars and walk more, I am low-carbon and healthy; Low-carbon enters every household, and I participate in energy conservation and environmental protection; Low carbon keeps the earth from suffering.