[countable]a very tall type of tree that grows especially in California and Oregon红杉，红木（多生长于加利福尼亚州和俄勒冈州）
giant redwoods巨大的红杉树
CultureThe giant redwood (or giant sequoia) is the tallest tree in the world. It can grow to more than 300 feet/92 metres tall and live more than 3 000 years. Many redwoods grow in the Redwood National Park, a World Heritage Site in north-western California, and in the Sequoia National Park in southern central California.