Macrolides antibiotics
[化] 大环内酯类抗生素
🧩 词语组成解析
[医]大环内酯类，大环内酯族
antibiotics
[ˌæntibai'ɔtiks]
n. （用作复数）抗生素;（用作单数）抗生物质的研究;<微>抗生素，抗菌素( antibiotic的名词复数 );
🗣️ 情景例句
If you need anything, just ask.
假如你需要什么尽管讲。
The coach is always gloomy when the team loses a game.
球队一输球，教练总要绷起脸来。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。