Phosphohomoserine
磷酸高絲氨酸
??? 情景例句
Sometimes.
有時(shí)候。
We use service centers at major stores. They ship goods back to our national service center for repairs.
我們采用大店服務(wù)中心，他們可把產(chǎn)品運(yùn)送到我們的國(guó)內(nèi)服務(wù)中心維修。
Sometimes I think this house will be knocked down by a passing plane.
有時(shí)我覺得這房子就要被一架飛過的飛機(jī)撞倒。