Differential section
[经] 差别地区
🧩 词语组成解析
differential
['dɪfə'rɛnʃəl]
adj. 差别的;特意的;[数]微分的;[机，物]差动的;
n. [数]微分;差别;工资级差;[机]差动器;
di, dif, divid 表示”分开”;”取消”,”否定”;”不同”
section
['sɛkʃən]
n. 部分;节;部件;部门;
vi. 切开;切断;做（动物或植物组织）切片;把（精神病患者）正式送入精神病院;
vt. 把…切成片（或段）;作…的切片;把…作成截面;制作…的剖面图;
sect切， 割+ion名词后缀 → 切开；部门
🗣️ 情景例句
And I'm planning to get a job for the summer.
我想在暑假打工。
Sometimes words hurt more than swords.
恶语有时伤人比刀剑更厉害。
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。