难度:**

concerning 关于,更正式,常用于书面用语

表示关于的单词:about,regarding,with regard to

about 可以直接跟在动词后面,如talk about worry about, 但是concerning 通常不行。

concerned about 是”担心...“ 不能 concerning about

straggle 除了有”挣扎“的意思,还有”努力做某事“的意思,这会正面些;

Now that a conclusion has been reached in the negotiations concerning the U.S tariff measures, I believe this is precisely appropriate time.

现在有关美国关税应对措施已经在谈判中得到结论,我相信这是一个恰当合适的时间。