subject [ sub- = under 下; ject = to throw 抛=>“to throw or put under抛置于…下面”→]I v. put under some power or influence 使隶属，使服从 / Ancient Rome subjected all Italy to her rule. 古罗马城邦管辖了整个意大利。II a. under the power or influence of 隶属的，受支配的 / We are subject to the country's laws . 我们都受国家法律约束。III n. person under a government or sovereign 国民，臣民 / The king was not concerned for his subjects. 那国王不关心他的臣民。

subjection n. 征服;隶属；屈从

submerge [ sub- = under 下；merg = to plunge 投入；-e=>“to plunge under water 投到水下”→]v. cover with water 浸没， 淹没 / The flooded river submerged the farmland in the valley. 泛滥的河水淹没了山谷中的农田。

submergence n. 浸没，淹没；潜入水中 

submergible a. 可浸没的；可潜人水中的

subscribe [sub- = under 在…下面；scrib = to write 写；-e =>“to write under 写在…下面”→]v. write ( one's name) at the end of (a document) ; sign 签署（文件），签（名）/ The old man subscribed his mark at the end of his will. 那老人在他的遗嘱下方画了花押。

subcription n. 签署;同意；订阅 

subscript a. 写在下方的

subtract [sub- = from under 自下；tract = to draw 拉=> “to draw sth. from under 从下面拉低某物”→]v. take (sth.) away from a whole 去掉，减去 / Subtract 2 from 10 and you have 8. 十减去二等于八。 subtractive a. 减少性的；带有负号的

下面各举一例说明原生词缀sub- 的异体的构词特点。

succeed [ sue- (sub-) = from under 自下；ceed = to go 走“to go from under 自下往上进”→]v. ①go after; take the place of 继…之后；接替 / John Adams succeeded Washington as President. 约翰•亚当斯在华盛顿后继任总统。②accomplish what is attempted 成功 / The attack succeeded beyond all expectations. 完全出乎意料，那次袭击成功了。

succession n. 连续；继任；继承[cm = ceed,下同] 

successive a. 连续的；相继的 

success n.成功，成就，胜利 

successful a.成功的