to tip的用法和樣例：
例句
- Some young people these days do not wish even to tip their hats to the opinions of their parents.
現在有些年輕人甚至連自己父母的意見都不願表示尊重。 - It would be difficult to tip the political scales so late in the campaign.
競選已進行到這麼晚的階段，要想扭轉政局是很難辦的。 - Is it customary to tip waiters in your country?
在貴國依照慣例是否應該付給服務員小費? - Did you remember to tip the porter?
你記得給搬運工小費了嗎？
