Tetracyclines
(tetracycline 的第三人称 -s形式) n. 四环素\\n[化] 四环素
🗣️ 情景例句
I care about more lockers for the teachers.
我关心教师要有更多的储物柜。
Steel ball
钢珠
Both men had just begun to swim towards the shore, when they noticed with dismay that the speedboat was moving in a circle.
两个人刚开始向岸边游去，就突然惊愕地发现快艇正在转着圈行驶，