拓宽 tuòkuān to broaden
How to remember 拓宽: 拓 to develop + 宽 wide = to broaden.
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How it is used
- To widen or broaden - 拓宽道路 (tuòkuān dàolù) widen a road, 拓宽思路 (tuòkuān sīlù) broaden one's thinking.
- Reading note: 拓 is tuò here. Works for physical widening and figurative broadening of horizons/channels.