Backstopping
支援（backstop的现在分词）
🗣️ 情景例句
I hope I can see you again.
我希望再到你。
It is the first step that costs.
万事开头难。
The purpose of my coming here is to inquire about possibilities of establishing trade relations with your company.
我此行的目的正是想探询与贵公司建立贸易关系的可能性。