I have quite confidence to my English proficiency, in addition, I have the experience working in UK, therefore I think me regardless of in business travel to overseas, receipting foreign customers, communicate with foreign buyers through telephone and email in terms of giving quotation, negotiating price, discussing payment terms, packing requirements, delivery terms, insurance terms, and handling complaints, all I have confidence to do it well.
更新1:
改動文字也不緊要,保到意思同grammar就得!