建议两点

1，用简单句子，如果不能handle长句和逻辑，
2，注意back anf forth的交流，说两三句，问问反应。

再加半点，如果自己还怀疑是否把意思表达清楚了，再问，”i hope i have explained it clear enough for you guys." "i hope what i just said makes sense to you. or do you have any questions?" 反正case by case啦。