Would you mind initialing this voucher?请在凭单上用首字母签名。a voucher for a free meal免费用餐券I still think it's a bit of a cheek sending a voucher rather than a refund.我还是认为，他们寄来优惠购物券，而不是退款，真是有些厚颜无耻。...
Water is not only colourless, but odourless as well.水不仅没有颜色，也没有气味。The gases are odourless.这些气体没有气味。...a completely odourless, colourless, transparent liquid...完全无味、无色、透明的液体Hydrogen is a corlourless, odourless gas.氢气是一种无色...