If necessary
辅助 Assistant如果必要的话
🧩 词语组成解析
if
[if]
conj. 如果，倘若;即使;〈口〉是否;假设;
n. 条件，设想;
🗣️ 情景例句
I'm so sorry.
很抱歉。
Altogether it will take ten days to make the trip.
完成旅行将花10天。
Our foreign trade policy has always been based on equality and mutual benefit and exchange of needed goods.
我们的对外贸易政策一向是以平等互利、互通有无为基础的。