Black lead lubrication
[机] 石墨润滑剂
🧩 词语组成解析
black
[blæk]
adj. 黑（色）的;黑色人种的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑颜料;黑暗;
v. 使变黑;抵制;拒绝;使变黑暗;
lead
[lid]
vt. 领导;引导;指挥;
vi. 领导;导致;用水砣测深;
n. 铅;领导;榜样;枪弹;
adj. 领头的;最重要的;领先的;
n. 润滑, 注油, 润滑作用\\n[计] 润滑
🗣️ 情景例句
It's good that you went back.
你回去是对的。
Hold (or Run) with the hare and run (or hunt) with the hounds.
两面讨好。
The basic features include a crest (the highest point of the wave),
它们的基本特征包括浪峰（波浪的最高点）