時間介詞:
about大約...,
after在…以後,
at在… (時刻),
before在…以前,
by到…為止,
during在…期間,
for有…(之久),
from從…(時)起,
in在(上/下午);在(多久)以後,
on在(某日),
past過了…(時),
since自從…(至今),
through 貫穿…(期間),
till直到…時,
until直到…時,
to到(下一時刻),
ever since從那時起至今,
at the beginning of在...開始時 ,
at the end of在...末 ,
in the middle of在...當中 ,
at the time of在...時