生疏❶unfamiliar
❷out of practice; rusty
❸not as close as before; getting more distant;estrange
我的英语有点～了。My English is getting rusty./两国关系～了。Relations between the two countries are not as close as before. or:The two countries have become estranged./人地～ be unfamiliar with the place and the local people/业务～be lacking in professional knowledge or training;not know the ropes |