Firming
vt.& vi. 使坚固（firm的现在分词形式）
🗣️ 情景例句
I'm sorry. For these large orders, we insist on payment by L C.
对不起。对于这样金额大的订单，我们坚持用信用证支付。
Talk of an angel and you'll hear his wings.
说到曹操，曹操就到。
There will only be standing room left for us next century!
到下个世纪我们就只有立足之地了。