保护

protect; secure; safeguard; conserve; preserve; shield; defend; guard; shelter; screen; protective; defensive; safeguarding; protection; defence; conservation; preservation; conservancy; wardship

地球

the Earth; Earth; earth; globe; the globe; planet; the planet; world; the world; planet Earth; terrestrial; earthly; global; geo-

标语

slogan; sign; banner; watchword; motto; catchphrase; poster