Free of cost
[经] 免费奉送
🧩 词语组成解析
free
[fri]
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地，无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
cost
[kɔst]
n. 价钱，代价;花费，费用;牺牲;[用复数][法律]诉讼费;
vi. 价钱为，花费;估计成本;
vt. 付出代价;估价;使丧失;使付出努力;
🗣️ 情景例句
She's nine years old.
她九岁。
Your unit price seems fair enough, but we're hoping for a higher discount rate.
单价似乎合理，但我们希望给予更高的折扣率。
Shortly after it was launched, the pie committee went to a local inn to celebrate.
盘子下水后不久，馅饼委员会成员们来到当地一家小酒店庆贺。