Concurrent activity
[计] 并行动作
🧩 词语组成解析
🗣️ 情景例句
I'm afraid the cardboard boxes are not strong enough for transport by sea.
我担心这种纸箱，用于远洋运输，不够结实。
I slipped on the stairs and fell down.I broke my leg.
我在楼梯上滑倒了并且掉下来我弄断了腿的。
At the age of twelve years, the human body is at its most vigorous.
人体在12岁时是生命力最旺盛的时期。