tend S1 W1 / tend / 动词
1 tend to do something if something tends to happen, it happens often and is likely to happen again :
People tend to need less sleep as they get older.
My car tends to overheat in the summer.
2 ( also tend to somebody/something ) [及物动词] old-fashioned to look after someone or something :
Sofia was in the bedroom tending to her son.
3 tend towards something to have one particular quality or feature more than others :
Charles tends towards obesity.
4 tend bar especially American English to work as a bartender
5 [ intransitive always + 副词 / 介词 ] formal to move or develop in a particular direction
tend upwards/downwards
Interest rates are tending upwards.