Underpinning
n. 基础材料, 支承结构
✅ 同义词
🗣️ 情景例句
I know you didn't expect to have me around,
我知道你没有预期我出现在你身边，
He is a gentle horse that never cast his rider.
驯良的马绝不会把骑手甩倒。
Look at something else, for example, a radio.
再瞧瞧其他东西，如收音机。